This should be fun, i've never rp'd ass a mentally disturbed person before. Well, not an incarcerated one anyway...

[url=http://www.deviantart.com/art/Humanstuck-Gamzee-Yo-349261763]Right here folks[/url]
(he's approximately 6'0" and weighs just over 130 lbs)
Name: John Lockhart
Age: 17
Disorder: Sociopathic Personality disorder - A distinct lack of empathy, morals & remorse, among other things
History: John was always an odd one, even as a kid. While the others were playing tag or kickball at recess, John was the kid either avoiding contact with everyone, or pulling the heads and limbs off of the toys of the younger kids, in middle school, when kids expressed an interest in a particular future career or a subject, John would go out of his way to figure out how to ruin things for the others in the worst way for the sheer pleasure of it. His parents first thought that John was merely a bully that would grow out of it when he got older, be it because he became ashamed of what he was doing, or because someone finally knocked some manners into him. That thought was instantly thrown from a window when John was found responsible for the suicide attempts made by multiple students during his time in high school. During counseling, John's therapist asked him why he convinced his fellow students to attempt to kill themselves, his response? "Because I was bored. Besides, the gene pool could use some cleansing.". Not too long after that he was admitted to the institution. His parents still hold out hope that their son isn't a monster. 
Other: Do NOT let his sweet face fool you, John is highly manipulative and is not to be left around the other patients without a staff member on standby. He also shows a distinct fondness for trolli brand sour gummy octopuses.