>> a lot of times what these inmates will do is they'll conceal contraband items in their mattress. so this appears to be some ink from an inmate-manufactured tattoo gun. it's pretty common. they'll hide ink and needles and rigs and stuff like that inside of these mattresses. basically we hit the cell looking for paperwork that may incriminate these guys being participants in this threat against staff. we collected a bunch of paperwork. we're going to take it back to headquarters. and then we're going to go through it with a fine-toothed comb and see what we can come up with, see if these guys are actively involved. to err on the side of caution we'll place them in ad seg and do our investigation. pending the outcome, we'll determine what their program is