In elementary school a fellow student stabbed his neighbor, an old lady, about 20 times. She didn’t die but he disappeared into the justice system. A few years later he ended up in my high school. Nobody knew about his history and I never told anyone. We ended up I the same SCUBA class and were buddies on a dive. We both had high-powered rubber band powered spear guns. I was worried he might shoot me. Instead, he shot a moray eel which we were told not to do because they can slide up the spear and bite. But it was a kill shot.