A toxicologist says Houston 's death could have stemmed from cardiac arrhythmia . The man who died in the crash was a passenger on board Flight 214 that crashed into an apartment building near downtown Houston. Death was from accidental drowning ; cocaine , heart disease were factors . Those who abuse Xanax can take up to 20 pills a day , he said , and the level found in Houston 's body would indicate she took four to six pills several hours before she died . Investigators found `` a small spoon with a white crystal like substance `` in her bathroom . Her assistant found Houston 35 minutes after telling her to take a bath .
A toxicologist says Houston 's death could have stemmed from cardiac arrhythmia . The man who died in the crash was a passenger on board Flight 214 that crashed into an apartment building near downtown Houston. Death was from accidental drowning ; cocaine , heart disease were factors . Investigators found `` a small spoon with a white crystal like substance `` in her bathroom . Her assistant found Houston 35 minutes after telling her to take a bath .