A 22-year-old man suffered a gruesome death on his Mykonos vacay when he was struck by helicopter blades ... and authorities looking into it think it could be a case of a photo op gone tragically wrong.
Jack Fenton and his 3 friends were recently getting off their hired black Bell 407 helicopter, coming back from the Greek isle, according to a report from The Sun.
They were taken away from the vehicle and to a private lounge as they waited for a plane to take them back to London, but Jack headed back toward the helicopter at a fast pace ... as others shouted at him to come back.
Witnesses who spoke to Greece’s committee for aviation accidents say he had a phone to his ear as he went toward the back of the helicopter, where the blade was still spinning -- he was stuck in the head, killing him instantly.
Those who saw the incident could only describe it as "horrifying. The pilot of the helicopter, who was "deeply traumatized," was arrested ... along with 2 ground technicians.
Cops are looking into every possibility, which reportedly includes "the possibility of the boy going there to take a selfie in the excitement of the moment."
Jack's parents were in a second helicopter heading to the same tarmac when their pilot requested emergency permission to abort the landing -- trying to spare them the horrific sight of their son -- and instead took them to Athens Airport.