King of Pop Michael Jackson died at the age of 50 from a cardiac arrest, induced by a lethal overdose of propofol and benzodiazepine, on June 25, 2009. The singer fell unconscious at his Los Angeles home and was rushed to hospital after his personal physician, Conrad Murray, was unable to revive him. The "Thriller" singer, who days before his death had been rehearsing for his comeback tour, was pronounced dead a little over an hour after arriving to hospital—and the news caused a global outpouring of grief. Two years later Murray was convicted of involuntary manslaughter for administering Michael the powerful sleep-inducing drug, propofol, which ended up killing him. He was sentenced to four years in prison, but due to overcrowding and good behavior he was released after serving just two years.