Yikes....
My guess is that he totally forgot that he wasn't wearing a
chute.
On a related note, there have been cases of people falling from
great heights only to survive with minor injuries.
If I remember correctly, there was a woman who base-jumped from
the Petronas Twin Towers only for her chute to fail....
miraculously, she survived with minor injuries.
My goodness.
Being a scatterbrain kills...