Death in the Prison

In the prison one day, a prisoner wanted to go back in time to save the people throughout time from dying. The prisoner asked one of the inmates "Do you have a time machine? I want to go back in time and save the people throughout time from death." But the inmate shook his head and said "Nope! We don't have a time machine. We can't go back in time! Time travel is impossible!" The prisoner became very angry. He did a King Kong imitation and pounded his chest. The inmate drew his phaser-2, set it to vaporize, and fired on the prisoner. The prisoner was vaporized. He was dead!