Lupe Velez

From Wiki :-
"Vélez's death was recounted in the 1959 book Hollywood Babylon by Kenneth Anger and has become urban legend. In his telling, Vélez planned to stage a beautiful suicide scene atop her satin bed, but the Seconal did not mix well with the "Mexi-Spice Last Supper" she had eaten earlier that evening. As a result, she became violently ill, stumbled to the bathroom to vomit, slipped on the bathroom floor tile and fell head first into the toilet, where she subsequently drowned. Anger claimed that Vélez's "chambermaid" Juanita found her the next morning. Despite the fact that his version of events contradicts published reports and the official ruling, his story is often repeated as fact or for comedic effect – it was recounted in the pilot episode of the television comedy series Frasier, and also referenced in an episode of the cartoon The Simpsons. Vélez's biographer, Michelle Vogel, points out that it would have been "virtually impossible" for Vélez to have "stumbled to the bathroom" or even get off her bed after having consumed such a large amount of Seconal. Seconal, a barbiturate, is noted for being fast acting even in small doses and Vélez's death was likely instantaneous. Her death certificate lists "Seconal poisoning" due to "ingestion of Seconal" as the cause of death, not drowning. Further, there was also no evidence to suggest Vélez had vomited."