This is very sad.
We've seen it here in L.A. as well and I believe it is indicative of the failing of the teaching of morality and ethics while at the same time teaching entitlement. There is no fear.
No fear of the law. No fear of society. No fear of repercussions. Ultimately, no fear of doing harm to another and no fear of death.
They are young and invincible and do not fear their elders. And, when one of them dies while doing harm, like spoiled children they cannot understand how anyone would stand their ground against them.
Mike