boston's suffolk county jail, we often trailed deputies as they responded to a multitude of inmate fights. >> other hand. other hand, other hand. slow everybody down. >> don't move. >> take him into his cell. >> stop running your mouth. >> okay? [ bleep ] >> what was that all about? >> i didn't even swing. >> what was that all about? >> basketball target. >> this fight was between inmates brad flowers and adidas maston. it occurred in the shower area, out of view of the jail's hundreds of surveillance cameras. >> turn around. put your hands through the trap. >> lieutenant keith maderus, one of the first officers on the scene, did see something important. >> i observed inmate mastons throwing closest punches and exchanging closest punches with inmate flowers.