I think this can somewhat relate to the latest poll about Cooper's survival. we know Cooper jumped, and if they are close in proximity of his jump and the path is correct, then Cooper obviously got away. what makes things difficult is the jump time, and location. if it's wrong it puts more mystery into it, and probability for life and death.
I'll have to check but the hijacking where the guy lost his pants is interesting with the things that left the plane. the map showing where he jumped and where things ended up are strange. they were all over the place. his plane was going much faster, but not sure of the altitude of the jump.
McNally, was his name...
McNally's hands were the only things keeping him connected to the plane. His body, suspended from the stairwell at 300 miles per hour, felt like a daisy caught in a hurricane.
In the cockpit, the remaining crew felt their ears pop as the cabin pressure fluctuated.
One thousand feet above the Boeing 727, from the vantage point of a military surveillance plane, an FBI agent observed a small, dark object falling rapidly from the rear hatch.
McNally dropped like a bullet, feet-first, and the first thing he perceived was the wind punching his flight goggles into his eye sockets. In seconds, the goggles were violently ripped from his head. McNally threw out his arms, bringing his body parallel to the ground as he began counting down from twenty in his mind. Basing his calculations on the formula for terminal velocity — which he'd learned in a library physics textbook — McNally figured that this would be enough time to slow his fall to a safe speed. If he pulled the chute too early, he knew, the air would shred the canopy like tissue paper.
The time came to test his math. McNally fumbled for the ripcord with his right hand, but he made the mistake of leaving his left arm outstretched. Instead of producing the serene, deliberate movements of an experienced skydiver, the wind took hold of his arm and slammed the hijacker into a furious spin
In the midst of the chaos, the parachute exploded out of the chest harness and ejected its spring-loaded contents directly into McNally's face. Blinded and hurting, he managed to grab hold of the shroud lines above him. He tugged hard, and was rewarded with resistance as the canopy filled with air.
He could only look down in horror. The mailbag was twenty feet below him, and getting smaller and smaller by the second. As if in a dream, McNally watched the fortune tumble in slow-motion, end-over-end, until it slipped below the clouds and vanished. McNally tied the bag to his belt loop...
Court records indicate the plane was at 10,000 feet traveling at 263 knots (true air speed)
self taught and made the jump...no special ops, CIA etc..