kenneth morgan stancil iii ` walked into wayne county community college in north carolina on monday and shot dead print shop director ron lane '
he was arrested in florida and will be extradited back to north carolina .
lane , 44 , had supervised him under a work-study program at the print shop but stancil , 20 , was dismissed last month for absenteeism .
in court on tuesday , stancil said he ` ridded one last child molester from the earth ' ; he said lane had sexually assaulted one of stancil 's relatives .
but stancil 's mother said it was not true and that her son is ` rattled '
police are investigating the killing of lane as a possible hate crime .
stancil lists ` white power ' as his interests on facebook and has white supremacist tattoos , including an ' 88 ' to signify ` heil hitler '