History of interpersonal violence

Gender: Male
Approximate Age: 15

History

May 20, 1998 - Springfield, OR (US)
Not Charged: Cats decapitated, mounted on sticks, burned

Notes:
He murdered both of his parents, then went on to his high school to open fire on his classmates, killing 2 and injuring 22. Police also found five sophisticated explosive devices (bombs) in his home.