If he had died when he jumped unless he was an expert in skydiving they would have found more evidence than they did. If you weren't an experienced skydiver, it would take six to seven practice jumps to successfully execute Cooper's jump. Cooper had to spend some time in the air with a parachute. If Cooper hadn't known what he was doing as a paratrooper, he wouldn't have asked for the four parachutes he asked for. He also told the flight attendant that he didn't need and instructions on how to use parachutes. If Northwest Airlines hadn't partnered with Cooper, things wouldn't have happened the way they did. It could have gone very differently