due to mature subject matter, viewer discretion is advised. >> inmate chris shiverdecker was recently approved for a transfer out of level six to level five. that was until today. >> shiverdecker when i escorted him he said to make sure they don't have -- he said to make sure that i didn't have a rookie with me when i came to pick him up from the yard. then he said to watch myself. >> and usually when he tells us something, we knew that there was business or there was something that was going to happen. >> his intention was to assault the inmate that was directly ahead of him. >> if i would have had it my way, she would have en dead. >> what happened? >> threatened my life and walk around. it's something i had to do. i didn't have a choice. >> what did you do? >> slipped the handcuffs and tried to get somebody. >> how? >> i just pop my thumb and slide it down, tried to rush the guy.