Los Angeles Police detectives investigating the death of Johnson & Johnson heiress Casey Johnson want to speak with the socialite’s fiancee, unstable reality star Tila Tequila, about statements she made on the social networking site Twitter.com, claiming Casey, 30, may have died of a prescription drug overdose.

Johnson was found dead by a housekeeper in her Los Angeles home on Monday. She had likely been there for days, police say. While officials don’t suspect foul play, they’ve begun interviewing Casey’s friends and family members and plan to talk to Tila about her alleged “fears” that her lover was an addict, FOX News has learned.