― The mystery of whatcaused Whitney Houston's shocking death has finally been solved. According tothe Los Angeles County Coroner's investigation, the icon died of"accidental drowning." However, as many speculated, drugs also playeda role. ∙ The report statesthat cocaine and heart disease were contributing factors in Houston's death.The singer was found dead in a bathtub in the Beverly Hilton Hotel on February11. Her problems with drug addiction were well known, and tests confirmed thatshe [...].