Spilling His Guts
He returned to his senses and made the decision to just return to his cell. He knew that they would discover the escape in the morning. The authorities searched every inch of the prison after they raised the alarm the following morning. West did not have a choice but to fully cooperate with them. He told them what he knew, but we do not know if he actually spilled everything! He told them that the plan was to go to Angel Island, steal a car, get some clothes, and split up.
Not Consistent
They had a problem with this confession. There were no cars reported missing or stolen in Angel Island as far as 12 days later. This means that West lied to them or they landed elsewhere and changed their plans. During the confession, West told them that he came up with the escape plan. The authorities sought the help of the FBI, who then opened an investigation to find out if the inmates survived.