3. John Belushi was just 33-years-old when he died from a drug overdose at the Chateau Marmon hotel off the Sunset Strip in L.A. Actors Robert De Niro and Robin Williams apparently had gone to see him in Bungalow 3 just before he passed away. 5. Anna Nicole Smith was found unresponsive in room 607 of the Seminole Hard Rock Hotel and Casino in Miami in 2007. She was rushed to hospital but pronounced dead an hour after the 911 call had been placed.