Girlfriend of Tila Tequila and Johnson & Johnson heiress Casey Johnson found dead

Johnson & Johnson heiress Casey Johnson, 30, known for her ongoing relationship with MySpace celebrity Tila Tequila, has been found dead in her Los Angeles home.

Tila has been tweeting all night about her “fiancee’s” death, though the pair had been separated over the past week due to a spat:

(Tila) says they were fighting last week and that Casey stayed at Tila’s house on the 28th. Tila tried contacting Casey on the 29th because Casey had left her dogs behind. Tila says Casey’s phone has been shut off since the 29th and she was not able to make contact.

Although Tila’s twitter account first reported that Johnson was in a coma, TMZ indicates that Johnson may have been dead for several days before her body was discovered. Cause of death is as of yet unknown.