The Black Dahlia and Zodiac Killer ‘were the same person’

One cipher he sent, cracked by a couple, read: “I like killing people because it’s so much fun. It is more fun than killing game in the forest, because man is the most dangerous animal of all to kill.”

However, Mann wants to make sure that both killers may be the same person, noting, “One of the things we have to be careful about is confirmation bias.

“So if you’re already thinking that your killer is also the Zodiac Killer, and then you notice, ‘Oh look, here’s the Zodiac Hotel,’ you know, that’s confirmation bias and we have to be careful with that.”

Former FBI profiler Julia Cowley is also in Mann’s corner, claiming the differences between Short’s murder and the Zodiac’s crimes are stark.