Because his parents didn't hug him enough or whatever bullcrap explanation people come up with these days instead of the truth which is his parents didn't spank him enough. Seriously, a bit of discipline never hurt anyone and we got kids terrorizing neighbourhoods coz parents aren't allowed to smack their kids anymore. I mean, come on - there's a world of difference between abuse and smacking your kid on the ass for trying to put the cat in the oven or whatever...