Never under estimate what fear will make a person do... I knew kids like this in HS that were picked on by bullies and were on the verge of something deadly and I talked them out of it.
Their fear seemed to be so big and they didn't or couldn't think of any other way out other than to hurt or handicap the bully. It's crazy.

Now as a father, I pay special attention to my kids when something happens at school. My wife thinks I over think things but I don't want my kids involved in something so trivial but deadly.

Children don't think about telling an adult or if they do tell a adult the adult doesn't do anything or they blow it off as just being kids, the kids involved think it's VERY serious and think it is the end of the world.

Not smart to ignore teenagers with bullying problems they can escalate REALLY quickly.

MAN!!!! That is really bad for both families. They both lost their sons today, one to death and the other to prison. I'm sure it was based on something very trivial.