About age 3 you learn the difference between right and wrong. If you beat (if I read it right, I'm stoned...) a 61 year old man and kill him with no probable cause, What makes you think he shouldn't be punished? A 15 year old would know better than that, but I guess some people are just born fucked up. 25 years in prison would suffice imo. Unless he was "peer pressured" into it and grew up in a violent family / neighborhood, in which case I'd suggest counseling and/or rehab.
@ the guy above me..
I saw that movie, That was fucked up haha.