New Orleans Axeman: The Intruder Hidden in a Night of Jazz

Symbols, Traces, and My Case Investigation Record 41

New Orleans Axe Killer
Intruder Hidden in Jazz Night

In 1918 and 1919 New Orleans Night, houses connected to grocery stores were attacked one after another. The criminal often used an axe at home and disappeared into the dark.

Figure 1. 1918 New Orleans Night Street — Image:

From the conclusion of this record to
Several incidents are likely consecutive attacks by the same culprit, but some may have been a mixture of imitation or personal conflict. Jazz letters should prioritize the possibility of mischief or newspaper manipulation using the fear of the criminal.

Prologue: Recorded Night

After the night deepens, the data was spread on the desk. The first thing that caught my eye was not the answer, but the imbalance. Some scenes were as clear as photographs and some time zones were empty as a whole. People try to capture one clear scene and explain the whole thing, but I marked the empty section first. Mysteries arise because there are many clues, but they also arise because the distance between clues is too far.

Many of the victims were Italian grocery store families. The 1919 newspaper reported a letter claiming to be the culprit and offering to save the house where jazz was played on a certain night. The letter became a symbol of the incident, but there is no evidence of independence that the actual culprit wrote it.

I deliberately read the famous hypothesis at the end. First of all, when we encounter the conclusion, it seems that all objects and symbols exist for that conclusion. Therefore, the timetable, place, object, and original text were organized first, and the witness and interpretation were placed in different compartments. The novel-like atmosphere was drawn from the cold texture of the actual record, not from a made-up secret.

Figure 2. Italian grocery stores with stores and houses — Image:

Case File: What I Could Believe

20313233343536373839404142434445464748495051525354555657585960616263646566212223242526272829303132333435363738394041424344454647484950515253545556

Number	Confirmed Record	Current Reliability
1	Similar residential invasion attacks occurred in New Orleans in 1918–1919.	High
2	At various sites, the axe of the victim's house was used as a crime tool.	High
3	Many of the victims were Italian grocery store families with houses and shops.	High
4	Infiltration was frequently linked to the manner in which the rear door or panel was damaged.	Medium
5	The 1919 letter 'Play the Jazz' has not been confirmed whether the criminal was written or not.	Medium

Whether the entire attack was the same criminal, the letter writer, the main motive of the crime, and the identity of the criminal were not identified.

Caution trap
'Unexplained' is not the same as 'supernatural', 'a huge conspiracy', and 'only this hypothesis is possible'. I didn't count the blanks as evidence.

Figure 3. Traces of intrusion on the rear door panel — Image:

Scene Reconstruction: Finally, the place of the certain point

was changed to the actual movement, not the stage in your head. We divided the starting point, the last check point, and the location where the item was found and calculated the minimum time required in between. When the dramatic description of later generations was removed, small and specific elements such as sound and lighting, doors and roads, paper and ink, and the spacing of symbols came forward.

The person's mind was not fixed and the action was written first. The same behavior can be caused by fear, planning, error, and fatigue. If it is a code, the same symbol can be a sound, a word, a separator, and a meaningless sign. After writing down all possible roles, he erased the roles that conflict with other records one by one.

Clue 1. Similar residential invasion attacks took place in New Orleans in a row between 1918 and 1919.

I split this sentence into three pieces first. It indicated who first checked, how close the confirmation was to the incident, and where the later interpretation was attached. Old events and codes turn into clearer stories than the original while being repeatedly cited. But clarity is not the same thing as accuracy. In my notes, I separated the direct record, the traces left by the object, and the reasoning of later generations into different colors.

Then, the clue was confronted with the record that "the axe of the victim's house was used as a crime tool at various sites." It is not a good hypothesis if one hypothesis explains only the first sentence and avoids the second sentence. In particular, if the question "Is the same intrusion a habit of the same criminal or a common vulnerability in architecture at the time" was not passed, attractive explanation also lowered the score. I've seen clues that make the conclusion uncomfortable longer than clues that make the conclusion cool.

If you look at the clues this way, the case seems a little less dramatic. Instead, there is a boundary between how far it is clear and where it is imagined. That boundary is necessary to correct reasoning when new data are released. The most dangerous moment in the unwritten record is not when you make a false hypothesis, but when you turn the hypothesis into a sentence of fact.

Clue 2. Axes from the victim's house were used as a crime tool at various sites.

I split this sentence into three pieces first. It indicated who first checked, how close the confirmation was to the incident, and where the later interpretation was attached. Old events and codes turn into clearer stories than the original while being repeatedly cited. But clarity is not the same thing as accuracy. In my notes, I separated the direct record, the traces left by the object, and the reasoning of later generations into different colors.

Then, this clue was confronted with the record, "Many of the victims were Italian grocery store families with houses and shops." It is not a good hypothesis if one hypothesis explains only the first sentence and avoids the second sentence. In particular, if you fail to pass the question, "Does the style of the jazz letter and the path of newspaper posting include internal knowledge of the case?" the attractive explanation also lowered the score. I've seen clues that make the conclusion uncomfortable longer than clues that make the conclusion cool.

If you look at the clues this way, the case seems a little less dramatic. Instead, there is a boundary between how far it is clear and where it is imagined. That boundary is necessary to correct reasoning when new data are released. The most dangerous moment in the unwritten record is not when you make a false hypothesis, but when you turn the hypothesis into a sentence of fact.

Figure 4. Axe taken from home — Image:

Clue 3. Many of the victims were Italian grocery store families with houses and shops.

I split this sentence into three pieces first. It indicated who first checked, how close the confirmation was to the incident, and where the later interpretation was attached. Old events and codes turn into clearer stories than the original while being repeatedly cited. But clarity is not the same thing as accuracy. In my notes, I separated the direct record, the traces left by the object, and the reasoning of later generations into different colors.

This clue was then matched with the record, "Intrusion was frequently linked to the way it damaged the rear door or panel." It is not a good hypothesis if one hypothesis explains only the first sentence and avoids the second sentence. In particular, if it fails to pass the question, "Was there a common person in the transaction and delivery network of the affected stores?" the attractive explanation also lowered the score. I've seen clues that make the conclusion uncomfortable longer than clues that make the conclusion cool.

If you look at the clues this way, the case seems a little less dramatic. Instead, there is a boundary between how far it is clear and where it is imagined. That boundary is necessary to correct reasoning when new data are released. The most dangerous moment in the unwritten record is not when you make a false hypothesis, but when you turn the hypothesis into a sentence of fact.

Clue 4. Infiltration was frequently linked to the way in which the rear door or panel was damaged.

I split this sentence into three pieces first. It indicated who first checked, how close the confirmation was to the incident, and where the later interpretation was attached. Old events and codes turn into clearer stories than the original while being repeatedly cited. But clarity is not the same thing as accuracy. In my notes, I separated the direct record, the traces left by the object, and the reasoning of later generations into different colors.

Then, this clue was confronted with the record, "The letter 'Play the Jazz' in 1919 was not confirmed whether the criminal was written or not." It is not a good hypothesis if one hypothesis explains only the first sentence and avoids the second sentence. In particular, if the question "Is the same intrusion a habit of the same criminal or a common vulnerability in architecture at the time" was not passed, attractive explanation also lowered the score. I've seen clues that make the conclusion uncomfortable longer than clues that make the conclusion cool.

If you look at the clues this way, the case seems a little less dramatic. Instead, there is a boundary between how far it is clear and where it is imagined. That boundary is necessary to correct reasoning when new data are released. The most dangerous moment in the unwritten record is not when you make a false hypothesis, but when you turn the hypothesis into a sentence of fact.

Clue 5. The letter 'Play the Jazz' in 1919 has not been confirmed whether the criminal was written or not.

I split this sentence into three pieces first. It indicated who first checked, how close the confirmation was to the incident, and where the later interpretation was attached. Old events and codes turn into clearer stories than the original while being repeatedly cited. But clarity is not the same thing as accuracy. In my notes, I separated the direct record, the traces left by the object, and the reasoning of later generations into different colors.

This clue was then matched with the record that "a series of similar home invasion attacks occurred in New Orleans between 1918 and 1919. It is not a good hypothesis if one hypothesis explains only the first sentence and avoids the second sentence. In particular, if you fail to pass the question, "Does the style of the jazz letter and the path of newspaper posting include internal knowledge of the case?" the attractive explanation also lowered the score. I've seen clues that make the conclusion uncomfortable longer than clues that make the conclusion cool.

If you look at the clues this way, the case seems a little less dramatic. Instead, there is a boundary between how far it is clear and where it is imagined. That boundary is necessary to correct reasoning when new data are released. The most dangerous moment in the unwritten record is not when you make a false hypothesis, but when you turn the hypothesis into a sentence of fact.

Figure 5. On-site police investigation at the time — Image:

Put three hypotheses on the same scale The

hypothesis was not evaluated as a cool sentence. The number of clues to be explained, the number of newly requested assumptions, and the degree to which they endure the opposite evidence were written, respectively. Even if one clue is fully explained, it is not a good hypothesis if the other records have to be discarded.

Hypothesis A. store structure and cash-informed lone robber repeated the attack.

This explanation has the advantage of accepting "a series of similar home invasion attacks occurred in New Orleans between 1918 and 1919" as a relatively small assumption. I assumed that this hypothesis was correct and walked time and space all over again. Each time people, objects, and symbols moved to the next location, they wrote down the actions and times they needed. There must have been a hidden assumption at the point where the sentence was cut off.

The biggest weakness is that it does not fully explain "many of the victims were Italian grocery store families with houses and shops attached." If you keep adding accomplices, coincidences, and lost things to keep the hypothesis alive, you can explain anything. However, such an explanation does not predict new clues. I only scored when two independent records pointed in the same direction, and I scored every time I called in a new exception.

117100118

So, whether or not to adopt this hypothesis as a conclusion was judged not by atmosphere but by cost. The number of clues to be explained, the number of newly requested households, and the degree to which they endure evidence against them are listed in the same table. Novel scenes were used to show the texture of facts, but not as evidence to fill in the blanks.

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Hypothesis B. One central criminal was mixed with copycat crime and personal conflict case.

121102122

This explanation has the advantage of accepting "the axe of the victim's house was used as a crime tool at various sites" as a relatively small assumption. I assumed that this hypothesis was correct and walked time and space all over again. Each time people, objects, and symbols moved to the next location, they wrote down the actions and times they needed. There must have been a hidden assumption at the point where the sentence was cut off.

123103124

The biggest weakness is that it does not fully explain "invasion was frequently linked to the way it damaged the rear door or panel." If you keep adding accomplices, coincidences, and lost things to keep the hypothesis alive, you can explain anything. However, such an explanation does not predict new clues. I only scored when two independent records pointed in the same direction, and I scored every time I called in a new exception.

125104126

So, whether or not to adopt this hypothesis as a conclusion was judged not by atmosphere but by cost. The number of clues to be explained, the number of newly requested households, and the degree to which they endure evidence against them are listed in the same table. Novel scenes were used to show the texture of facts, but not as evidence to fill in the blanks.

127105128

Hypothesis C. It was a revenge crime that combined racial hostility and monetary purposes.

129106130

This explanation has the advantage of accepting "many of the victims were Italian grocery store families with houses and shops" as relatively few families. I assumed that this hypothesis was correct and walked time and space all over again. Each time people, objects, and symbols moved to the next location, they wrote down the actions and times they needed. There must have been a hidden assumption at the point where the sentence was cut off.

131107132

The biggest weakness is that it does not fully explain, "The letter 'Play the Jazz' in 1919 did not confirm whether the criminal was written or not." If you keep adding accomplices, coincidences, and lost things to keep the hypothesis alive, you can explain anything. However, such an explanation does not predict new clues. I only scored when two independent records pointed in the same direction, and I scored every time I called in a new exception.

133108134

So, whether or not to adopt this hypothesis as a conclusion was judged not by atmosphere but by cost. The number of clues to be explained, the number of newly requested households, and the degree to which they endure evidence against them are listed in the same table. Novel scenes were used to show the texture of facts, but not as evidence to fill in the blanks.

Figure 6. 'Jazz Night' letter in the newspaper — Image:

Conclusions I abandoned

137111138

When I started the investigation, I was also drawn to the most famous explanation. It organized the case into one sentence and gave intention to everything. However, in contrast to the original record, each blank required a new coincidence. I erased the conclusion then and started again. Good reasoning is not about adding anything, but about removing unnecessary assumptions.

139112140

I separated the jazz letter as a separate object, not a key to the case. After erasing the letter, what's left is the store structure, night cash, the back door, and the axe in the house. It refers to the evolution of crime of intrusion that is more realistic than demonic consciousness. Is the intrusion method such as

141113142

In particular, the details repeated on later articles and the Internet were separated from the source. Just because the same sentence appears in multiple places does not mean that there are multiple independent sources. We first checked the possibility that one error was duplicated. After this process, the case became less colorful, but the weight of the remaining clues increased.

Figure 7. 1919 Jazz Band and Busy Streets — Image:

Anti-evidence: Sentence to destroy my reasoning

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The investigation ends quickly if I gather data that upholds my conclusion. So I put the three most uncomfortable questions next to the conclusion.

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• a habit of the same criminal or a common weakness in architecture at the time
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• Does the style of jazz letters and the path of newspaper posting include internal knowledge of the case
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• Was there a common person in the transaction and delivery network of the damaged stores?

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These questions are not decorative. It is a switch that will change its conclusion when new data comes in. The ranking of the hypotheses changes immediately when directly linked information, such as the sighting source, preserved physical evidence, comparative samples from the same author, and independent dating. On the contrary, when the word "likely" increased, the ranking did not change.

Figure 8. Map of the delivery and transaction networks of the affected stores — Image:

Final Reasoning: I Reached

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Judgment
Several incidents are likely consecutive attacks by the same culprit, but some may have been a mixture of imitation or personal conflict. Jazz letters should prioritize the possibility of mischief or newspaper manipulation using the fear of the criminal.

161126162

This conclusion is not a complete final judgment. The direction calls for the fewest assumptions in the currently disclosed records and explains the most clues at the same time. It is also clear that what comes out changes the conclusion. Reliable original records, verifiable legal science data, and independent evidence directly linking people and objects are needed.

163127164

I do not write that the case is closed. Instead, write down how far you can close it. That boundary is the result of this investigation. The fun of mystery is not that anything is possible. It's about finding out what you can throw away among the possible explanations.

Figure 9. Table of copycat cases with the same culprit — Image:

Additional Survey Record 1. Redraw the timetable

167130168

Re-expanding the data on the desk, this time covering the conclusion. "Similar home invasion attacks took place in New Orleans between 1918 and 1919," he continued in a line of place and time. Unconfirmed sections were not filled by imagination but marked with blank squares. The larger the square, the lower the reliability of the hypothesis to pass through the section.

169131170

On top of it, the explanation was posted, "The store structure and the lone robber who knew the cash repeated the attack." At first, everything seemed right, but a weak connection was revealed when the question was asked, "Is the same intrusion a habit of the same criminal or a common weakness of architecture at the time?" Hypothesis has to endure the question. If you keep making new coincidences to avoid questions, you will create, not reasoning, from that moment on.

171132172

The results obtained in this section are not confirmed criminals or complete plain texts. Instead, it became clear which explanations required fewer assumptions, and what would flip the ranking if found. Even if the case is not completed, the scope of the investigation can be narrowed. This record is intended to leave that very narrow boundary.

173133174

Further investigation record 2. Disappeared link

175134176

Re-expanded the data on the desk and covered the conclusion this time. He continued to line up the location and time, leaving only, "The axe at the victim's house was used as a tool for crime at various sites." Unconfirmed sections were not filled by imagination but marked with blank squares. The larger the square, the lower the reliability of the hypothesis to pass through the section.

177135178

On top of it, I posted an explanation saying, "One central criminal was mixed with copycat crime and personal conflict." At first, everything seemed right, but when I substituted the question, "Does the style of the Zaz letter and the path of the newspaper post include internal knowledge of the case?" a weak connection was revealed. Hypothesis has to endure the question. If you keep making new coincidences to avoid questions, you will create, not reasoning, from that moment on.

179136180

The results obtained in this section are not confirmed criminals or complete plain texts. Instead, it became clear which explanations required fewer assumptions, and what would flip the ranking if found. Even if the case is not completed, the scope of the investigation can be narrowed. This record is intended to leave that very narrow boundary.

181137182

Further investigation record 3. The path of movement of objects

183138184

Re-expanded the data on the desk and covered the conclusion this time. Many of the victims were Italian grocery store families with houses and shops, leaving only one line of place and time. Unconfirmed sections were not filled by imagination but marked with blank squares. The larger the square, the lower the reliability of the hypothesis to pass through the section.

185139186

On top of it, I posted an explanation that "it was a revenge crime that combined racial hostility and monetary purposes." At first, everything seemed right, but a weak connection was revealed when the question, "Was there a common person in the transaction and delivery network of the affected stores?" was substituted. Hypothesis has to endure the question. If you keep making new coincidences to avoid questions, you will create, not reasoning, from that moment on.

187140188

The results obtained in this section are not confirmed criminals or complete plain texts. Instead, it became clear which explanations required fewer assumptions, and what would flip the ranking if found. Even if the case is not completed, the scope of the investigation can be narrowed. This record is intended to leave that very narrow boundary.

189141190

Further Survey Record 4. Opposite Hypothesis Night

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I re-opened the material on the desk and covered the conclusion this time. "The intrusion was frequently connected to the way it damaged the back door or panel," he continued in one line with the location and time. Unconfirmed sections were not filled by imagination but marked with blank squares. The larger the square, the lower the reliability of the hypothesis to pass through the section.

193143194

On top of it, the explanation was posted, "The store structure and the lone robber who knew the cash repeated the attack." At first, everything seemed right, but a weak connection was revealed when the question was asked, "Is the same intrusion a habit of the same criminal or a common weakness of architecture at the time?" Hypothesis has to endure the question. If you keep making new coincidences to avoid questions, you will create, not reasoning, from that moment on.

195144196

The results obtained in this section are not confirmed criminals or complete plain texts. Instead, it became clear which explanations required fewer assumptions, and what would flip the ranking if found. Even if the case is not completed, the scope of the investigation can be narrowed. This record is intended to leave that very narrow boundary.

197145198

Further Survey Record 5. Distance between record and memory

199146200

I re-opened the material on the desk and covered the conclusion this time. The place and time continued in a line, leaving only "1919's 'Play the Jazz' letter that was not confirmed whether the culprit was written." Unconfirmed sections were not filled by imagination but marked with blank squares. The larger the square, the lower the reliability of the hypothesis to pass through the section.

201147202

On top of it, I posted an explanation saying, "One central criminal was mixed with copycat crime and personal conflict." At first, everything seemed right, but when I substituted the question, "Does the style of the Zaz letter and the path of the newspaper post include internal knowledge of the case?" a weak connection was revealed. Hypothesis has to endure the question. If you keep making new coincidences to avoid questions, you will create, not reasoning, from that moment on.

203148204

The results obtained in this section are not confirmed criminals or complete plain texts. Instead, it became clear which explanations required fewer assumptions, and what would flip the ranking if found. Even if the case is not completed, the scope of the investigation can be narrowed. This record is intended to leave that very narrow boundary.

205149206

Additional Survey Record 6. Range of Last Scene

207150208

Re-expanding the data on the desk, this time covering the conclusion. "Similar home invasion attacks took place in New Orleans between 1918 and 1919," he continued in a line of place and time. Unconfirmed sections were not filled by imagination but marked with blank squares. The larger the square, the lower the reliability of the hypothesis to pass through the section.

209151210

On top of it, I posted an explanation that "it was a revenge crime that combined racial hostility and monetary purposes." At first, everything seemed right, but a weak connection was revealed when the question, "Was there a common person in the transaction and delivery network of the affected stores?" was substituted. Hypothesis has to endure the question. If you keep making new coincidences to avoid questions, you will create, not reasoning, from that moment on.

211152212

The results obtained in this section are not confirmed criminals or complete plain texts. Instead, it became clear which explanations required fewer assumptions, and what would flip the ranking if found. Even if the case is not completed, the scope of the investigation can be narrowed. This record is intended to leave that very narrow boundary.

Figure 10. Timeline of 1918-1919 Attacks — Image:

Records and references

· New Orleans City Archives — Axeman overview

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· Louisiana archaeology archive — Melpomene Street Blues

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※ This article is a commentary in the form of personal survey records based on public records and reliable data. I have distinguished between confirmed facts and my reasoning, and I update my judgment when a new official announcement is made. External material images were edited for some color and composition according to the permitted licensing conditions, and each image source was shown in the caption.