Brittany Murphy, 32, recently passed away from cardiac arrest. To be technical about the matter, everyone actually dies from cardiac arrest. The heart stops, the body dies. The big question is, what stopped the heart? In Murphy’s case, friends and fans are still clueless.

The LA County Coroner’s Office has completed the autopsy, but the results are under wraps while doctors wait for toxicology reports to be completed. These results won’t be available for several weeks. So far, no memorial plans have been made for the actress.