Whitney Houston drowned in a hotel bathroom. She had a number of drugs in her system, including Cocaine, marijuana, Benadryl, Flexeril, and Xanax. However none of them were found ion levels that could cause her death. In addition the much touted 'coronary artery disease' found on autopsy was not severe, and in no way contributed to her death either. The Law Med Blog takes you through the evidence and shows the coroner in fact has no idea what killed Whitney Houston.

So what caused Houston to drown in a bathtub??