Alcatraz Jailbreak
The Three's Last Route in 1962
Frank Morris and John Clarence Anglin escaped Alcatraz Jail in 1962. The jailbreak has been confirmed, but it is not clear whether the three people have lived and crossed the San Francisco Bay.
Alcatraz Jailbreak is an incident that combines a method-confirmed success with an unconfirmed disappearance.
▲ Alcatraz Cell Block — The space where the jailbreak began
Prologue: A Record-Breaking Night
When I unfolded the incident data on the desk, the first thing I noticed was not the correct answer, but the imbalance. Some scenes were too clear, and some times were entirely empty. People try to explain the whole incident by holding on to a clear scene, but I marked the empty section first. Mysteries arise because there are many clues, but sometimes the distance between them is too far.
The three deceived the roll call by widening the area around the vent and placing their fake heads on the beds. They prepared a raft and life equipment made of raincoat.
I didn't see this event as a work to confirm a known ending. The records were arranged in chronological order, the routes of the objects were drawn separately, and the sightings and interpretations were marked in different colors. The most famous explanation was then deliberately reviewed at the end. Because if you first read a famous hypothesis, all the clues appear to exist for that hypothesis.
▲ A service passage behind the cell wall — A journey of three people hide
Case Files: What I Could Believe
| Number | Verified Records | Current Reliability |
|---|---|---|
| 1 | Jailbreak was discovered on the morning of June 12, 1962. | High |
| 2 | The route to the coast via the service passage and roof behind the cell has been reconfigured. | High |
| 3 | Some of the raincoat raft parts and personal items were found in the bay. | the middle |
| 4 | The FBI closed the case in 1979 and handed it over to the Federal Security Service, but failed to confirm its survival. | the middle |
Whether the raft actually departed, the point of arrival, the meaning of the absence of the body, and the authenticity of the later letter and photo claims remain.
The sentence 'unexplained' is not the same as the sentence 'supernatural' or 'someone intended'. I didn't use the blanks as evidence.
▲ Fake head made of paper and soap — a device that deceived the night roll call
Reconfiguring Scene: The Last Definite Point
I changed the place where the incident took place to a real route rather than a stage in my head. I divided the starting point, the last check point, and the place of discovery, and calculated the time required in the meantime. Several dramatic descriptions of later generations were missing in the process. Instead, the recorded sound, weather, means of transportation, and the location of objects came forward. The fictional atmosphere arose from the texture of that very fact. There was no need to add an unidentified secret passage or an unnamed accomplice.
When I reconstructed the last scene, I did not make up the character's mind. Fear, planning, error, and fatigue can cause the same behavior. So, I wrote down my actions first and left my emotions only to the extent possible. The events became less colorful but more specific thanks to this principle.
Clue 1. Jailbreak was found on the morning of June 12, 1962.
I placed this sentence in the middle of the case record and checked the tense first. It started from who observed it, when it was written right on the spot, or whether it was added as a later memory. The longer the clues to the unsolved case get, the smoother it becomes. However, what is needed in the investigation is not the smoothness but the source. The outline of the case changed as soon as the clue was distinguished whether it was a direct observation, a trace left by an object, or someone's interpretation.
If only this clue is taken away, a conclusion in one direction seems very plausible. However, I immediately confronted the next record, "The route to the coast via the service passage and roof behind the cell has been reconstructed." If the two do not naturally coexist in the same explanation, the explanation is still only a story. In particular, the hypothesis that fails to pass the question "Which destination will the tide point according to the actual departure time?" turns a blind eye to the rest of the records instead of explaining one clue.
So I made three compartments in my case notes. The first is confirmed facts, the second is reasoning that has only taken one step from facts, and the third is the possibility that you cannot choose without additional evidence. This clue is a mixture of the parts that are close to the first compartment and the parts that stay in the second compartment. I did not erase that boundary. Because leaving boundaries is the only way to correct reasoning when new records emerge later.
▲ The escape route to the roof and coast
Clue 2. The service passage behind the cell and the route to the coast via the roof have been reconstructed.
I placed this sentence in the middle of the case record and checked the tense first. It started from who observed it, when it was written right on the spot, or whether it was added as a later memory. The longer the clues to the unsolved case get, the smoother it becomes. However, what is needed in the investigation is not the smoothness but the source. The outline of the case changed as soon as the clue was distinguished whether it was a direct observation, a trace left by an object, or someone's interpretation.
If only this clue is taken away, the conclusion in one direction seems very plausible. However, I immediately confronted the following record, "A part of the raincoat raft and some of the personal items were found in the bay." If the two do not naturally coexist in the same explanation, the explanation is still only a story. The hypothesis that fails to pass the question "Is the trace of the later sending to the family independently verified?" turns a blind eye to the rest of the record instead of explaining one clue.
So I made three compartments in my case notes. The first is confirmed facts, the second is reasoning that has only taken one step from facts, and the third is the possibility that you cannot choose without additional evidence. This clue is a mixture of the parts that are close to the first compartment and the parts that stay in the second compartment. I did not erase that boundary. Because leaving boundaries is the only way to correct reasoning when new records emerge later.
▲ A temporary raft made after the raincoat and a part of the paddy
clue 3. A part of the raincoat raft and personal items were found in the bay.
I placed this sentence in the middle of the case record and checked the tense first. It started from who observed it, when it was written right on the spot, or whether it was added as a later memory. The longer the clues to the unsolved case get, the smoother it becomes. However, what is needed in the investigation is not the smoothness but the source. The outline of the case changed as soon as the clue was distinguished whether it was a direct observation, a trace left by an object, or someone's interpretation.
If this clue is taken away, a conclusion in one direction seems very plausible. However, I immediately confronted the next record, "The FBI closed the case in 1979 and handed it over to the Federal Security Service, but they did not confirm its survival." If the two do not naturally coexist in the same explanation, the explanation is still only a story. In particular, the hypothesis that fails to pass the question "If the three people survived, would they move together or would they immediately disperse?" turns a blind eye to the rest of the record instead of explaining a single clue.
So I made three compartments in my case notes. The first is confirmed facts, the second is reasoning that has only taken one step from facts, and the third is the possibility that you cannot choose without additional evidence. This clue is a mixture of the parts that are close to the first compartment and the parts that stay in the second compartment. I did not erase that boundary. Because leaving boundaries is the only way to correct reasoning when new records emerge later.
Clue 4. The FBI closed the case in 1979 and handed it over to the federal sheriff's office, but they could not confirm its survival.
I placed this sentence in the middle of the case record and checked the tense first. It started from who observed it, when it was written right on the spot, or whether it was added as a later memory. The longer the clues to the unsolved case get, the smoother it becomes. However, what is needed in the investigation is not the smoothness but the source. The outline of the case changed as soon as the clue was distinguished whether it was a direct observation, a trace left by an object, or someone's interpretation.
If we separate this clue, a conclusion in one direction seems very plausible. However, I immediately confronted the next record, "Jailbreak was found in the morning of June 12, 1962. If the two do not naturally coexist in the same explanation, the explanation is still only a story. The hypothesis, which fails to pass the question "Which destination will the tide point according to the actual departure time?" in particular, ignores the rest of the records instead of explaining one clue.
So I made three compartments in my case notes. The first is confirmed facts, the second is reasoning that has only taken one step from facts, and the third is the possibility that you cannot choose without additional evidence. This clue is a mixture of the parts that are close to the first compartment and the parts that stay in the second compartment. I did not erase that boundary. Because leaving boundaries is the only way to correct reasoning when new records emerge later.
Putting the three hypotheses on the same scale, the
hypothesis did not evaluate them in a nice sentence. The number of clues to be explained, the number of newly requested assumptions, and the degree to which they can withstand opposite evidence were written down, respectively. A complete explanation of one clue is not a good hypothesis if the other three are discarded.
▲ San Francisco Bay Tides and Water Temperature — Most Dangerous Variables
Hypothesis A. Explaining that he drowned because of cold water and currents
The advantage of this explanation is to accept the clue "Jailbreak was found on the morning of June 12, 1962" as a relatively small assumption. I first assumed this hypothesis to be true and re-staged the incident from start to finish. I connected each sentence to where the character saw something, what kind of judgment he made, and moved to the next place. At the point of disconnection, there must have been a hidden assumption.
The biggest weakness is that it does not fully explain "part of the raincoat raft and some of the personal items found in the bay." If you keep adding exceptions to keep the hypothesis, you can explain anything, but such an explanation does not predict anything. I lowered the score of the hypothesis the moment the two exceptions were exceeded. Conversely, I only scored when two independent clues pointed in the same direction.
In the end, this hypothesis cannot be completely discarded, but it cannot be concluded as it is. If you read an event like a novel, the blanks will naturally fill in. If you read it like an investigative record, the blanks will remain the same. I chose the latter. Even if the blanks left are uncomfortable, the inconvenience protects the extent to which the evidence can speak.
▲ Estimated Route to Angel Island
Hypothesis B. Explanation that we arrived on land using algae and preparation
The advantage of this explanation is that it accepts as a relatively small assumption that "the route to the coast via the service passage and roof after the cell has been reconstructed." I first assumed that this hypothesis was true and re-staged the event from beginning to end. I connected where the character saw what he saw, what he made, and what he moved to the next place one sentence by one. There must have been a hidden assumption at the point of disconnection.
The main weakness is that it does not fully explain "the FBI closed the 1979 case and handed it over to the Federal Sheriff's Office, but it did not confirm its survival." If you keep adding exceptions to keep the hypothesis alive, you can explain anything, but that explanation does not predict anything. I lowered the hypothesis' score the moment the two exceptions were exceeded. Conversely, I only scored when two independent clues pointed in the same direction.
In the end, this hypothesis cannot be completely discarded, but it cannot be concluded as it is. If you read an event like a novel, the blanks will naturally fill in. If you read it like an investigative record, the blanks will remain the same. I chose the latter. Even if the blanks left are uncomfortable, the inconvenience protects the extent to which the evidence can speak.
Hypothesis C. Explain that only one or more people survived or were pushed to another point
The advantage of this explanation is that it accepts as a relatively small assumption the clue, "A part of the raincoat raft and some of the personal items were found in the bay." I first assumed that this hypothesis was true and re-staged the event from beginning to end. I connected where the character saw what he saw, what he made, and where he moved to the next place one sentence by one. There must have been a hidden assumption at the point of disconnection.
The biggest weakness is that it does not fully explain "Jailbreak was found on the morning of June 12, 1962." If you keep adding exceptions to keep the hypothesis alive, you can explain anything, but such an explanation does not predict anything. I lowered the score of the hypothesis the moment the two exceptions were exceeded. Conversely, I only scored when two independent clues pointed in the same direction.
In the end, this hypothesis cannot be completely discarded, but it cannot be concluded as it is. If you read an event like a novel, the blanks will naturally fill in. If you read it like an investigative record, the blanks will remain the same. I chose the latter. Even if the blanks left are uncomfortable, the inconvenience protects the extent to which the evidence can speak.
▲ Coast search records — found items and empty sections
The conclusions I abandoned
I was also drawn to the most famous explanation at the beginning of the investigation. It organized the case in one sentence and gave everything intention. However, when the data were compared, the explanation required a new coincidence for each blank. Then I erased the conclusion and started again. Good reasoning was more about removing unnecessary assumptions than adding anything.
The absence of a body does not prove survival, nor does the absence of criminal or financial signs confirm death. Bird models and departure times are key variables.
In particular, the details repeated on the Internet and later testimonies were separated from the original record. Just because the same sentence appears in multiple places does not mean that there are multiple independent sources. The possibility that one wrong sentence was duplicated was first confirmed. The size of the case decreased after this process, but the weight of the remaining clues increased.
▲ Federal Investigation Records — Conclusion Unconfirmed Survival
Final Reason: The Results I Reached
Alcatraz Jailbreak is an incident that combines a method-confirmed success with an unconfirmed disappearance.
This conclusion is not a complete final decision. It is a direction that requires the least assumptions in the currently disclosed records and explains the most clues at the same time. It can be corrected when new evidence comes out. However, it is also clear that the conclusion changes when it comes out. Reliable original records, verifiable legal and scientific data, and independent evidence that directly connects objects and people are needed.
I don't write that I closed the case. Instead, write how far you can close it. That boundary is the result of this investigation. The fun of the mystery is not that anything is possible. It is in finding out what can be thrown away among the possible explanations.
Additional Investigation Records 1. Redraw the Timeline
At dawn, the event chart was reopened. This time, he only covered up the conclusion and left a record saying, "Jailbreak was found in the morning of June 12, 1962. Even incidents that I thought I already knew will take on a completely different shape if I erase the conclusion. I connected the place and time in a line and wrote the minimum time needed to move. The space between the records was marked with a blank square without filling it with imagination. The larger the square, the less reliable the hypothesis was to explain the section.
On top of it, I put a hypothesis, "An explanation that I drowned because of cold water and currents." At first, everything seemed to fit. However, when the question, "Which destination will the current point according to the actual departure time point?" was substituted, the weak part of the explanation was revealed. Hypotheses have to endure questions. If you keep calling new people or coincidences to avoid questions, from that moment on, it becomes creation, not reasoning. I used my sense of creation only in the atmosphere of the sentence and did not put it in the place of fact.
The result I got from this section is not the name of the criminal or the complete decryption. Instead, it became clear which explanations required fewer assumptions and what would be reversed if new findings were made. Even if the case is not completed, it is possible to narrow the scope of the investigation. This record is intended to leave that narrow boundary.
Further investigation records 2. Missing links
At dawn, the event table was reopened. This time, the conclusion was concealed, and only the record was left: "After the cell, the service passage and the route to the coast via the roof have been reconstructed." Events that I thought I already knew will take on a completely different shape if I erase the conclusion. I connected the place and time in a line and wrote the minimum time required to move. The spaces between the records were marked with blank squares instead of filled with imagination. The larger the square, the less reliable the hypothesis explaining the section was.
On top of that, I posted a hypothesis that "an explanation that I arrived on land using algae and preparations." At first, everything seemed to fit. However, when the question, "Is the trace of the later generation sent to the family independently verified?" was substituted, the weak part of the explanation was revealed. Hypotheses must endure questions. If you keep calling new people or coincidences to avoid questions, from the moment on, it becomes creation, not reasoning. I used my sense of creation only in the atmosphere of the sentence and did not put it in the place of fact.
The result I got from this section is not the name of the criminal or the complete decryption. Instead, it became clear which explanations required fewer assumptions and what would be reversed if new findings were made. Even if the case is not completed, it is possible to narrow the scope of the investigation. This record is intended to leave that narrow boundary.
Additional Investigation Records 3. Eyewitness Distance
At dawn, the event table was reopened. This time, he only covered up the conclusion and left a record saying, "A part of the raincoat raft and some of the personal items were found in the bay." Even events that I thought I already knew will take on a completely different shape if I erase the conclusion. I connected the place and time in a line and wrote the minimum time required to travel. The space between the records was marked with an empty square without filling it with imagination. The larger the square, the less reliable the hypothesis that explains the section.
On top of that, I put a hypothesis that "an explanation was that only one person survived or was pushed to a different point." At first, everything seemed to fit. However, when the question "If the three of us had survived, would they have moved together or would they have scattered immediately?" was substituted, the weak part of the explanation was revealed. Hypotheses have to endure questions. If you keep calling new people or coincidences to avoid questions, from the moment on, it becomes creation, not reasoning. I used the sense of creation only in the atmosphere of the sentence and did not put it in the place of the fact.
The result I got from this section is not the name of the criminal or the complete decryption. Instead, it became clear which explanations required fewer assumptions and what would be reversed if new findings were made. Even if the case is not completed, it is possible to narrow the scope of the investigation. This record is intended to leave that narrow boundary.
Further investigation record 4. The path through which the item passed
At dawn, the case table was unfolded again. This time, covering the conclusion, only the record was left: "The FBI closed the case in 1979 and handed it over to the federal security office, but they could not confirm its survival." Even cases that I thought I already knew reveal a completely different shape when I erase the conclusion. I connected the place and time in a line and wrote the minimum time required to move. The gap between the records was not filled with imagination but was marked with a blank square. The larger the square, the lower the reliability of the hypothesis explaining the section.
On top of it, I put a hypothesis, "An explanation that I drowned because of cold water and currents." At first, everything seemed to fit. However, when the question, "Which destination will the current point according to the actual departure time point?" was substituted, the weak part of the explanation was revealed. Hypotheses have to endure questions. If you keep calling new people or coincidences to avoid questions, from that moment on, it becomes creation, not reasoning. I used my sense of creation only in the atmosphere of the sentence and did not put it in the place of fact.
The result I got from this section is not the name of the criminal or the complete decryption. Instead, it became clear which explanations required fewer assumptions and what would be reversed if new findings were made. Even if the case is not completed, it is possible to narrow the scope of the investigation. This record is intended to leave that narrow boundary.
Additional Investigation Records 5. The Temptation of False Clues
At dawn, the event chart was reopened. This time, he only covered up the conclusion and left a record saying, "Jailbreak was found in the morning of June 12, 1962. Even incidents that I thought I already knew will take on a completely different shape if I erase the conclusion. I connected the place and time in a line and wrote the minimum time needed to move. The space between the records was marked with a blank square without filling it with imagination. The larger the square, the less reliable the hypothesis was to explain the section.
On top of that, I posted a hypothesis that "an explanation that I arrived on land using algae and preparations." At first, everything seemed to fit. However, when the question, "Is the trace of the later generation sent to the family independently verified?" was substituted, the weak part of the explanation was revealed. Hypotheses must endure questions. If you keep calling new people or coincidences to avoid questions, from the moment on, it becomes creation, not reasoning. I used my sense of creation only in the atmosphere of the sentence and did not put it in the place of fact.
The result I got from this section is not the name of the criminal or the complete decryption. Instead, it became clear which explanations required fewer assumptions and what would be reversed if new findings were made. Even if the case is not completed, it is possible to narrow the scope of the investigation. This record is intended to leave that narrow boundary.
▲ Alcatraz at dawn — Confirmed escape and unconfirmed survival
Additional Investigation Records 6. Reconstruction of the Last Scene
At dawn, the event table was reopened. This time, the conclusion was concealed, and only the record was left: "After the cell, the service passage and the route to the coast via the roof have been reconstructed." Events that I thought I already knew will take on a completely different shape if I erase the conclusion. I connected the place and time in a line and wrote the minimum time required to move. The spaces between the records were marked with blank squares instead of filled with imagination. The larger the square, the less reliable the hypothesis explaining the section was.
On top of that, I put a hypothesis that "an explanation was that only one person survived or was pushed to a different point." At first, everything seemed to fit. However, when the question "If the three of us had survived, would they have moved together or would they have scattered immediately?" was substituted, the weak part of the explanation was revealed. Hypotheses have to endure questions. If you keep calling new people or coincidences to avoid questions, from the moment on, it becomes creation, not reasoning. I used the sense of creation only in the atmosphere of the sentence and did not put it in the place of the fact.
The result I got from this section is not the name of the criminal or the complete decryption. Instead, it became clear which explanations required fewer assumptions and what would be reversed if new findings were made. Even if the case is not completed, it is possible to narrow the scope of the investigation. This record is intended to leave that narrow boundary.
· National Park Service — Alcatraz Escape
※ This article is a commentary in the form of personal investigation records based on public records and reliable data. We have distinguished between facts and reasoning, and when a new official announcement is made, the judgment is updated.