According to the report by the L.A. County Coroner via TMZ, singer Whitney Houston's official cause of death was accidental drowning, although the document also noted heart disease and cocaine use. In addition to having cocaine in her system when she died, Houston also had Xanax, Flexeril, Benadryl and traces of marijuana in her system. A source closely connected to the investigation told TMZ that it is "very possible" that Whitney could have had a heart attack which in turn caused her to lose consciousness and drown. Although Whit had cocaine in her body, there was none found in her hotel room. The Houston family released this statement: “We are saddened to learn of the toxicology results, although we are glad to now have closure.”