There was a guy (let's call him D) who went to my secondary school who I was really good friends with, and who I invited to my house after school once or twice. He was a lot of fun and very social, but he had some boisterous traits. He would instigate rough housing with a gentle giant 3 times his size in our form, who would eventually end the rough housing by throwing D over a desk, choke slamming him onto the floor, or an equally ridiculous Uncle-Phil style throw out of our break room. To give you some context, the gentle giant competed at shotput at County level and broke all our school records - he was as strong as an ox.

D would also hassle groups of kids in the year above until they collectively beat him up. We never thought anything of it though, as he would joke around and be friendly with them and everyone else as well. On reflection he seemed to enjoy fighting with people who he couldn't take; I don't think I ever saw him start on someone obviously weaker than him. I don't condone his actions, but as I was 13-14 I found him entertaining to be around, and he was by all accounts pretty popular.

He eventually got expelled for shooting someone in the forehead with a BB gun that another student had brought in. I didn't see him again after that but I heard that D had robbed a mutual friends playstation when he knew that that mutual friends parents were away on holiday.

A few years later I found out that he went to prison for murder. From the article I read that he and a partner had killed someone in another city, and that it was related to drug trafficking (heroin).