As the prisoner was packing provisions for the journey to Mexico, he thought about how he was going to liberate himself from the prison. Then he realized that he could notify his contacts on the outside and get an access card to the roof, were he could have a helicopter pick him up. Later that day his contact got him the access card and somebody to pick him up. That night he escaped his cell and got on the roof where he was never picked up.
“But how did he get up there?” is the question everybody had.