The Three Amigos (Collaborative TL Between Joe Bonkers, TheMann, and isayyo2)

Damn good reading about the Beatles ITTL. But what of Mark David Chapman? Not that I actually give a crap about him, just out of curiosity.
Thank you! As for Chapman, he isn't a factor here, in part because John isn't based in New York. Mental health treatment and understanding of mental illness is stronger in TTL - partly a legacy of the cooperation of the Amigos in the world wars and postwar period - so we can assume that Chapman simply got the treatment he needed before doing something drastic.