Police investigating the death of a British stuntman in a wingsuit accident in the Swiss Alps are studying video footage of the fatal jump, the event organiser has said.
Mark Sutton, who parachuted into the Olympic Stadium dressed as James Bond during the opening ceremony of London 2012, died after hitting a mountain ridge during the freefall from a helicopter near Mont Blanc, police believe.
Trey Cook, editor-in-chief of Epic TV, an "online extreme sports media service", said Sutton was part of a group of 20 of the world's top wingsuit pilots he had invited to the Alps to jump on film.
Speaking from Chamonix, the French resort where the group are staying, he said: "There were two pilots that jumped at the same time. The pilot who was with him (Sutton) had a camera on." He added that the moment of impact was not captured on film.
Wingsuits are special jumpsuits which increase the surface area of the body and act like a parachute wing, allowing users to glide through the air at high speeds before landing via parachute.
Describing Mr Sutton's death as "devastating", Mr Cook said all bar one of the group had decided to carry on with jumps in the area despite his death, in tribute to his memory.
"We had organised a group of 20 of the world's top wingsuit pilots to come and do some jumping," Mr Cook said. "It was a really casual event. They had gone up in helicopters and they were jumping. They were choosing their own courses. We were filming them as they were flying."
Police in the Swiss Valais canton confirmed that a 42-year-old British man had died after jumping with a friend from a helicopter while wearing a wingsuit above the Grandes Otanes area, close to the French border. In a statement they said the pair jumped from a height of 10,826ft (3,300m).
It said: "They then flew, sticking close to the mountain side, with the intention of landing near the hamlet of Le Peuty, near Trient. During this flight, one of the men had a fatal fall. According to preliminary investigations, it appears that he fell after hitting a ridge.
"The victim, a Briton, was 42 years old. He was in Chamonix with around 20 other wingsuit pilots, considered among the best in the world in this sport. The group had been invited by an extreme sports company which makes films that are broadcast on the internet." The police said formal identification was under way and an investigation has been opened.