I'm rewatching JoJo Part 4 and it's just
Yoshikage Kira: I am a perfect killer and never leave traces of my existence. For 15 years I have remained undetected.
Kira his entire first spotlight episode:
I love Kira because like most real life serial killers he has a hugely overinflated sense of self-importance.
Like, read about how Ed Kemper used to hang out at a cop bar, sometimes with a woman in the trunk of his car out back. He thought he was this perfect elusive killer and every cop would hunt him down, and when the cops were told Kemper was the likely culprit, they were like "oh that nerd?"
The moral of the story is that serial killers get away with it not because of their own talent, but because cops are dumb