Who wanted to kill Whitney Houston in The Bodyguard?

Answer 1

No-one killed her. The police quickly ruled out any crime, and later, the coroner's report said she died from drowning, but that her history of drug use contributed to her death by weakening her heart.

Answer 2

In a drunken, drugged, jealous fit, the character's sister hired a hit man to kill Whitney's character. The hit man turns out to be the former co-worker (at the Secret Service) of the bodyguard.

Answer 3

The sister organizes a hit man who early attempt to get wiv Whitney and used to be the BodyGuards buddy in the CSI