This was the same guy who utterly failed a couple of months ago, when he attempted to carve '666' onto his own forehead after he forgot he was looking into the mirror and actually carved '999' instead, lol.
The convicted murderer, who slaughtered four people, Juan Uribe-Pena, Jorge Cajiga-Ruiz, Curtis Bradford and Andrea Kruger, in a crazed killing spree in 2013, also tried to slice his tongue like a snake and smeared the blood all over his cell walls.
Prison wardens said they don't known how Jenkins, who is kept in a private cell, gets access to blades and hides them.
His latest painful activity has left Jenkins needing 27 stitches. There are speculations that Jenkins is doing these self mutilations so he can claim insanity.
Jenkins says he acts under the voice commands of a serpent god, but psychiatrists are split on whether is he a genuine schizophrenic or not.