I was playing a backyard game of tackle football back in high school. One of my friends was running the ball up the middle of the field and being pursued by another. The pursuer lunged at my friend's ankles to try and trip him up but got a flinging heel to the base of his nose instead. It crushed his nose up into his brain. He died before ever reaching the hospital.
My friend was devastated. Freak accident. He didn't come to school for weeks. B ut technically he's a murderer.
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Transported to a surreal landscape, a young girl kills the first woman she meets and then teams up with three complete strangers to kill again. Wonderful movie.
I forget the exact charges brought against him, probably manslaughter, but one guy I knew was driving home drunk from a graduation party with some friends and crashed his truck into a tree. The two riding in the bed of the truck were decapitated.
Also if you want to count suicide as self-murder, I've known four people who have killed themselves, one being a very close friend.
Yeah, I've met a man who beat a random dude (of certain ethnicity) to death after waking up and seeing that his car had been broken into. I was never friends, or even close with the guy, but he was a friend of the father of a girl I hung out with in senior year, so I'd see him at their house every once in a while.
I was also friends with a guy who assaulted someone with a police baton and then robbed him... He got 18 months or so for it. The kid was really stupid when he got drunk (I believe he was blacked out at the time) but I never really thought he'd do something that dumb. Now he's out and he's still an idiot obsessed with being a gangsta.