Kinda old news, but Yahoo just reprinted it today even though Sheila Keen Warren was arrested Sept last year.
They arrested her based on DNA evidence from her hair being left. I can't see that they detail where the hair was found. If it was found inside the victim's house, or even on the victim, that doesn't mean much since Sheila had been having an affair with the victim's husband, Michael. Michael could have tracked home the hair after a noontime tryst with Sheila.
If the hair was in the getaway car, that would mean something because if an unknown clown killed the victim, how did Sheila's hair get into that car?
Anyone following this case and know where Sheila's hair was actually found?
Killer clown investigators used DNA from hair samples to make cold case arrest - Orlando Sentinel