In 1962, when the prison guards at Alcatraz Island Prison rounded the ward, they saw that an inmate was still sleeping and stepped forward to touch it. What the prison guard did not expect was that the prisoner's head rolled directly to the ground, causing him to take several steps back.
After careful observation, the prison guards discovered that it was a dummy head, and the prisoners in the prison had long been gone.
To make matters worse, two more prisoners were missing, and in their cells connected ventilation ducts were found, from where they apparently escaped.
In the week that followed, the police dispatched a large number of personnel to search within a radius of several kilometers. But strangely, they did not find any trace of the prisoners, and the three seemed to disappear out of thin air.
Later, the police interrogated Allen, who was inseparable from the three prisoners on weekdays, and learned from him that the three prisoners fled to Angel Island. However, after the police sent people to investigate, they found no other traces except for some raincoat fragments.
To this day, the whereabouts of the three prisoners are still unknown, because Alcatraz prison has always been known for strict supervision, claiming that no one can escape, and the sudden occurrence of such a thing has discredited the police.
Coupled with the fact that the U.S. Treasury needed a lot of money to keep the prison running, they took the opportunity to close Alcatraz Prison.
Many people may find it strange that 3 prisoners managed to escape, why didn't Allen run?
It turned out that on the night of the escape, Allen planned to reinforce the vent with cement when he was about to leave, but unexpectedly used too much, causing the vent to harden and narrow, and he could not get through, so he could only watch his accomplice escape.
So, how did the four prisoners find their escape route and how did they implement the plan?
Two years ago, the Anglin brothers were transferred to Alcatraz Prison for robbing banks and escaping multiple times.
Frank is a felon, he has participated in a series of crimes such as drug trafficking and robbery, and Allen's crime is relatively minor, just a car thief.
But coincidentally, the 4 people used to be cellmates in other prisons, but they didn't expect that this time the several people reunited on Alcatraz Island, naturally there are many common topics.
Unable to stand the harsh conditions on Alcatraz, the four discussed escaping from the prison, and they first applied for a change of cell, intending to live in the same area.
Unexpectedly, the prison guards quickly approved, and the four became neighbors, and they did not rush to escape, but based on the experience of other prisoners who failed to escape, they summed up the lessons learned.
After constant discussion and reflection, the four people thought that the vent under the sink of the cell was an excellent route to escape.
After that, the four people often used the opportunity to release the wind and eat to collect various small iron blocks, small saw blades and other tools.
But these things alone would definitely not be able to dig through the concrete, so they stole a vacuum cleaner and made a drill with the motor inside.
But the problem is that the prison is so small, there are guards not far away, and if they use electric drills, the loud noise will definitely alarm them.
However, the four soon found a way to use their hobby time and began to practice various musical instruments, masking the noise of the electric drill with the sound of music.
Slowly, the concrete under the sink was smashed through, and the four people found newspapers to spread on it, and if the prison guards did not go directly to check it, they really could not find it.
Not to mention, if the four people put their minds to the right path, they can become very good skilled workers.
They actually made a hovercraft with only a book explaining the principles of inflatable boats, as well as various discarded raincoats, tapes and other items. Before leaving, they also used soap and other items to make dummy to fool through.
