Maybe I forgot what it was like to be a kid. I was captain of my school's Quiz Bowl team through high school (think of team Jeopardy), which prevented me from playing football. Of course, I was starting varsity pitcher as a sophomore, but that's another story. Sure, I've done stuff to "be cool", but shee-it...if someone told me to go with them to murder someone in cold blood to "fit in", I'd probably do some sort of mix between looking at them like they lost their damned minds, and booking it double-speed to an adult and telling them what they said. High schoolers know right from wrong, for the most part. Now, they may try to rationalize minor bullying, cheating, etc. However, even the most dim-witted teen knows that murder is wrong.
If they don't, I think society is better off with them in the ground.