A question about Dexter, spoilers about season 4?
Who killed rita and did she know that dexter is a serial killer? Was it arthur mitchell who killed her?
- KesharaLv 46 years agoFavorite Answer
Yes Arthur Mitchell the "Trinity Killer" was the one who killed Rita. He killed Rita before Dexter killed him.
Also Rita didn't know that Dexter was a serial killer; she just thought he was a regular person.