After a night of drinking, according to the following report, the victim and friends were returning from drinking, and when the elevator door opened
on the 17th floor, the victim ran down a short hallway ending near a floor to ceiling window, where he lost his balance and crashed through the glass,
falling 17 floors, and luckily landed on a lower rooftop overhang.
A 17 floor fall, is more than enough to reach "terminal velocity" yet he survived with some broken bones and other injuries.
USAtoday.com Article link
With that kind of luck, this guy should have skipped the night of drinking, instead spent the time buying lottery tickets, for every lottery there is.