No one saw the final seconds of the jump, but judging from Ben's video he went in the trees at linestretch, no real inflation occurs. A jumper from the last load (3-way, all wingsuit, Ben shot video) speculates that 3 things contributed to the tragedy: 1. Loss of attention to altitude because he was watching the others. 2. Possible missed pull 3. Low pull Ben was conscious when the others reached him. They thought it was bad but really thought he would pull through. He was airlifted to Interlaken after he was stabilised, and then airlifted to Bern because of the severity of his injuries. He did not make it to Bern.