It seemed impossible, but shortly after news broke that an Air India flight had crashed in the city of Ahmedabad, video started circulating on social media showing a man walking from the scene in a bloodstained shirt.

The sole survivor of the Air India plane crash may have revealed a key clue into what went wrong when he explained what happened moments before the crash which killed more than 200 people. On June 12, a 40-year-old British man survived the wreckage of an Air India flight that killed all other 241 passengers and crew, an more people on the ground.