The story is "Discards." The Hugo-winning author is David D. Levine.
(The art is by the one and only John Picacio).
You can read "Discards" for free here: http://www.tor.com/2016/03/30/discards/
(And if you like that one, there are five other Wild Cards originals available on Tor.com, by the likes of Walter Jon Williams, Carrie Vaughn, Paul Cornell, Cherie Priest, and Daniel Abraham. Seek and ye shall find. Jetboy did not die in vain!)