His name is Xavier, he was a pyschopath. He kill some people that he didn't like. He was at the laboratory cell while chained up, he was tied up in a experimental chair while some doctors was trying to check his condition

As he was being aggressive while being checked, he was yelling through the gag on his mouth as some doctors fears him as one of them paste the picture of you on the wall and that made him calm down

"She's Mine!? Let me see her!? Or else. You fuckers!?"