For some context, I moved schools after 7th grade but I still was friends with the people in my old school. We all became friends with this guy around 4 years ago, but since I didn’t go to their school we only talked online. He came into my friend group and we opened up to each other pretty quickly. And that’s when I came to know that he suffers from depression and anxiety. But what bothers me was that overtime I noticed that as he was becoming more and more comfortable speaking with me, he started to talk really bad of other people. And the things said weren’t in a “Oh I don’t like that girl” type of way it was more of a “I hope she gets run over by a car and dies” type of way. Now nobody in my friend group said anything to confront him about how the stuff he says is really mean, and I majority of the time I have no clue who he’s talking about because I didn’t go to their school. However it constantly bothered me the fact that he kept talking bad about people and when I asked him why he would say such things his reasoning was over the slightest, non problematic issues ever. Whenever I try to bring up a mistake he has made everyone in my friend group turns on me and tells me that he’s actively trying to become a better person and that he is going through a lot emotionally. I never hear an apology come out of his mouth because his mental health issues were always brought up during arguments. I tried to let it go but this continued over the years and I just couldn’t take it anymore. I felt like whether intentionally or unintentionally he was using his mental health issues as a way to condone his poor behaviour towards others, and my friends were falling for it. He was the type of person that would talk so badly of others in a group chat behind closed doors, but in front of that person he act like they’re good friends. At one point I told myself enough was enough and told them I didn’t want to be friends with them anymore. I had one friend in that friend group who also agreed with me and we’re still friends to this day. However she knew of the people that he talked bad about and soon after proof of all the times he talked bad of others (including a death list of like 30+ people) got leaked and his whole school knew about it. Many people came up to him and confronted him about it too, because majority of the people he talks bad about he didn’t even know personally and they don’t even know him at all. A lot of his friends came after me in my dms afterwards, saying how I’m betraying them and all I do is talk bad. “Did you know he was very depressed? Did you know it affected him really badly?” Was something brought in my dms by one of them after the death list got leaked in the school. How do I even respond to this?