Whitney Houston Drowned After Cocaine Consumption Whitney Houston died from drowning, heart disease and cocaine. The cause of death of the famous U.S. singer and actress Whitney Houston, finally revealed. Apart from drowning in the bathtub, but drug abuse and heart disease are other factors causing death, according to Whitney’s responsible for investigating deaths in Los Angeles, USA. The authority spokesman, said Craig Harvey, a drug test shows 48-year-old singer was a chronic cocaine users. This announcement ended speculation causes the death of Whitney’s background. Whitney was found drowned in a bathtub at a hotel in Los Angeles on Sunday (12/2) .