Whoa...sucks he made such a dumb decision at 15 years old. I'm always really torn in these cases because now his whole life is pretty fucked up, but on the other hand WTF? and consequences, yo.
I think 25 to life is too much for a 15 year old. But I am not a fan of long sentences for minors, like I am not a fan of trying minors as adults.
I absolutely think he should have been sentenced to a few years in juvenile hall though. Because that shit is beyond fucked up. But people guilty of manslaughter get shorter terms than 25 to life.