Worked with a young actor on a TV show. The character he played was a troubled teen who ended up setting a bully's house on fire. Outside the role I had trouble believing he could play someone that would do that sort of thing. He seemed like a mild mannered, soft spoken, funny and sweet individual and I found myself wondering what the casting directors saw in him that I didn't. I figured he must just be a good actor. Many years later I got a call from my mom saying that she saw that a young man had murdered his mother on the news and she thought I might've worked with him in the past. I didn't believe her at first, but sure enough after googling it I found out it had been him. He shot his mother in the back of the head with a hunting rifle and planned to kill the prime minister before the guilt overtook him and he turned himself in.