He hit the ground in an upright position, leaving a six-inch deep hole in the ground. One leg and one arm were smashed, his back was broken, and his skull was crushed.
It would later become known that, in 1911, a Russian inventor had already designed and tested a small parachute.
Detailed article about the full story: https://historicflix.com/franz-reichelt-the-doomed-aviation-safety-pioneer/
There’s film/video of his hubris. https://www.britishpathe.com/asset/92596/
Why didn’t he jump from the top?
Icarus’ wings look a little worrisome