... he already has a four year old son:

http://www.fgtnews.com/random/skydiving-stunt-to-attempt-jump-without-a-parachute-or-wingsuit-on-hea...

Brief extracts for those who hate links:

Luke Aikans, a professional skydiver who performed stunts for films such as “Iron Man 3,” will jump out of a plane from 25,000 feet Saturday. He is the first person to attempt to land safely on a net.

At least it's all been carefully calculated and researched, to the extent of testing the landing device:

One of those 200-pound (91-kilogram) dummies didn’t bounce out. It crashed right through.

I'll bet he doesn't  sleep too soundly tonight.

Let's pray that it works out OK.