From the 60s-90s, there were many serial killers who were caught and put into custody. But then, it just kinda... stopped? I'm aware that the amount of serial killers is unknowable, but surely, with increases in forensic technology and surveillance, there would be even more caught. But there aren't. What happened?
Iirc this was a big reason Bruce McArthur took so long to get caught, he targeted people from Toronto's gay village. People from the area knew there was a serial killer targeting them, but the police actively denied that there was any reason to believe that until they caught him. They had questioned him 5 years prior in connection to one of his victims after he made a post online saying he had
killed and eaten a man from Toronto's gay village around the same time a man from Toronto's gay village went missing, but was let go, and another of his victims was a homeless man who was never reported missing in the first place.
Green river killer did this too, almost all his victims were sex workers and teenage runaways
And Jeffrey Dahmer.