Now that’s one heck of a cold case. Since Tutankhamun died in 1323 BC and was found in 1922, his death has been shrouded in mystery. Now, British experts believe they have solved the young pharaoh’s cause of death—a chariot crash. Using a “virtual autopsy,” researchers found a series of injuries on one side of the body that, combined with the mummy’s missing heart, led them to conclude that a chariot crashed into him when he was kneeling. This destroyed his ribs, pelvis, and heart. Chemical tests also revealed that the burned flesh on bones at Liverpool University were due to a bungled mummification that caused the body to spontaneously combust.