Dead End Massacre(2004)

Danielle Stevenson is a lonely, disturbed little girl who's the target of incessant bullying at school. Fed up, Danielle retaliates the best way that she can -- by killing one of the bullies. After 10 years in a mental institution, 17-year-old Danielle escapes and returns to her old neighborhood intent on exacting revenge. Anyone up for a little massacre?