>> what you see here is you'll see ritchie, and there's another guy, a guy out here, and basically they're just hanging out. they already know what's playing. i mean it was premeditated. >> the men are waiting for a black inmate to exit his cell. >> he's immediately met by ritchie. he was actually standing at his door waiting for the door to be opened. and he assaults him and chases him around with another -- this guy here is just kind of being a spectator at this point. you'll see another inmate come running from this side that also aids. now you've got the three white guys running around, assaulting the one guy here. and finally, they corner him and get him down and all three of them get on him before the officers can actually respond and activate their chemical agents. >> the victim received treatment at a nearby hospital and ritchie was transferred to the segregation unit. >> he has been extremely disruptive and disorderly in our general population. and i've given him multiple chances, so that's the reason i chose to place him in administrative segregation.