Robin Williams died on August 11, 2014. It was concluded that he "died of 'asphyxia due to hanging'".
Brittany Murphy died on December 20, 2009. The Los Angeles County coroner stated that the primary cause of Murphy's death was pneumonia, with secondary factors of iron-deficiency anemia and multiple drug intoxication. Her husband died six months later of the same-ish thing.
Steve Irwin died on 4 September 2006. Irwin's death is believed to be the only fatality from a stingray captured on video.