for years, the most dominant gang operating behind the walls of the suffolk county jail's riverhead facility has been the bloods. >> step over the back corner. >> now their archrival is out to change the pecking order. >> crips are trying to show force inside the jail. this is one of the problems we're having right now. that is why we are having escalation in fights. it's almost a green light for every time they see a blood in the jail. everybody is aware of it. we kind of know who the bloods and crips are. >> still pretty. >> we try to keep them separated as much as we can but they will meet up and we have to respond. >> one member of the crips, nicholas cox, recently launched a surprise attack on a blood. the next day he battled several other bloods seeking retribution. for initiating the first fight and not complying with orders to stop during the second, cox received 75 days of lockdown status. he will be confined to a cell 22 1/2 hours a day. unlike solitary confinement, he will be able to socialize with