i'm john segenthaler.

i'm john segenthaler. are much more intense because you're not out on the streets. you can't be 20 miles from somebody who may like you or may not like you. you can be one or two sectors or next door neighbors. there is nowhere to run. you're in jail. we need to know today who gets along with who today. knowing as much as we can helps the safety of the jail, that's our ultimate goal. >> that attention to detail has worked out well for weston kruger and brandyn scotto. they have spent the last eight months together, cellies and their conflicts rarely go beyond cards. >> trump. >> yes, it is. >> a club is trump. you got clubs. see that? got to watch. >> play it back. >> kruger has seemingly adjusted to a peaceful life in jail. but his life on the outside was dedicated to fighting. he made his name as a mixed martial arts cage fighter. >> came natural, being a big guy, left-handed, the natural double jointer right shoulder, i had a right cross, just put down anybody that i connected with the right spot on the chin. i just used to love to fight. i got those basically wh