>>3668867People in my circles got weird as fuck towards the end of HS and early college.
>A handful took some hardcore crazy pills around age 20(just normies before) >One An hero'd>Anime kid gave all his shit away and we were 99% sure he was going to off himself >Stoners I knew became full blown tiggered SJWs screaming about BLM>Some just cut all communication one day and never heard from them againFrom the brief description you gave I'd put him in the category of the anime kid. He was super bleak and emo for no apparent reason at all, but he calmed down and became normal eventually. All I can suggest is try to be a good friend, try to get him out of the house and hope for the best.