There was this white guy at USP Victorville in 2015 named Eric with devil tattoos on his forehead. He seemed cool at first, but then he checked into protective custody and gave the cops a shank. Then he claimed to have been given the shank and told to stab a cop with it by one of the older white guys. That was not true as far as I know. The decision to take out a cop in prison is not something to be taken lightly because the punishment for everyone in such cases is quite severe (at least several months lockdown). In order for anyone to receive an order to shank a cop that cop would have to have done something really bad and nobody could think of any cop that had reached that at that facility at that time.
I wish I knew more about the dude. I don't know his last name, but I believe he is in his mid to late twenties. Shaved head and like I said earlier, devil horn tattoos on his forehead.