Ashton

He is secretly a dragon trapped forever in human form when he was about twelve he found an amulet that called to him. The more he wore the amulet the more out of control he was until he snapped, and the amulet took full control and made him go on a killing spree. He ended up accidentally dropping it and had no memory of where he was or who he used to be, he didn't know about the murders. He ended up meeting a friend called Lincoln who let him stay with him for a year. It is a few years after the incident and Ashton got lost but he found a shack, there was a power energizer in there but it had been cursed and sent out electric shocks that hit Ashton, and then Ashton's wings and horns grew. He was so heavily dissociating he didn't know.