Who is the scariest person you've ever met?

When I was in 5th grade I had a friend, we'll call her Sarah. Sarah had an older brother we'll call Sean, who was always a bit creepy, but my innocent mind didn't really understand how deeply wrong in the head he was. I had to walk past Sarah and Sean's house to get to my other friend, Kate's house. One day walking to Kate's, Sean was outside and called me over to "ask me something" I went over and he grabbed me and started grabbing around on my chest, and asked kinda aggressively if I liked that, I was like "no, that's weird!" And ducked out of his arms and ran the rest of the way to Kate's house. I thought he was just being weird, I didn't realize until much later the sexual connotations, I was only 10. I told my mom about it and she told me I'm not allowed to go over to Sarah's anymore. Fast forward 3 years, I'm now in 8th grade, Sarah is a freshman, and Sean is 17. One night there was a lot of commotion coming from down the street, cops, an ambulance, a fire truck, I wondered what was going on, but I hadn't talked to Sarah in a while so I didn't know what had the potential to go wrong (like her dad had heart problems or something) I resolved to talk to her later and find out, several days went by and I hadn't seen her, so I asked my friend Kate if she knew what happened. Sean had raped Sarah, violently enough that she was beat up real bad and the ambulance was for her and she was still in the hospital, and Sean was being sent off somewhere else, but still being a minor he wasn't going to jail somehow. Sarah stopped going to school and a few months later I found out that she was now pregnant from what Sean did, a little bit after that she committed suicide. I have no idea whatever happened to Sean.

/r/AskReddit Thread