I don’t think the Zodiac is a serial killer either AND I don’t think the production team on the Zodiac film thought he was either cause they cast like 3 or more voice actors to portray him/them.

It’s fun to think of the possibilities... Was one of the killers a cop trying to cover his tracks by linking his crime to another? Was the Zodiac not even a killer, but a hoaxer, maybe someone who worked in law enforcement and wanted to fuck with people/the press? Was he an actual killer of 1 or 2 crimes but also took credit for way more than he actually did??

Also, isn’t handwriting analysis now considered junk science?? I know hair and blood splatter are... I was not convinced by the sample handwriting. Graysmith being the Zodiac or pretending to be seems really silly and like something they’d have investigated by now...

Anyway, I love this movie and will continue to rewatch it too many times... Don’t care if he’s a serial or not.