For several years during the last decade I gathered inspiration from a neighbor who often passed by my house on his bike. Actually he rode a “handcycle” — a tricycle he pedaled with his hands. His legs were gone below the knees, but with his arms he often cranked out hundreds of miles a week.

This old neighbor of mine is S. Brian Willson, a former U.S. Air Force officer. He served in Vietnam, but he didn’t lose his legs in the war. That happened on American soil.

After witnessing the effects of an American napalm raid on a peaceful Vietnamese village, Willson, a former all-conference athlete and scion of American conservatives, returned home to participate in antiwar protests. By the eighties Willson was organizing military veterans to oppose the Reagan administration’s three wars in Central America. Then, on September 1, 1987, he and fellow veterans David Duncombe and Duncan Murphy sat on a curving stretch of railroad track that crossed a public road. Their goal was to block munitions shipments from the Concord Naval Weapons Station in California to American proxy armies in Central America. As the train approached, traveling at more than three times the legal speed limit of five miles an hour, it became clear it wasn’t going to stop. The protesters scrambled. Murphy, a sixty-six-year-old World War II veteran, jumped up to grab the locomotive’s cowcatcher, then leapt to the side. Duncombe was also able to jump clear. Willson was not. The train ran him over, severing one leg and mangling the other, and carving a chunk out of his skull. (He would end up losing both legs and his right frontal lobe.) A navy ambulance arrived quickly, but the medics refused to work on Willson, who was bleeding profusely, because, they said, they couldn’t treat people who were not technically on navy property. Seventeen minutes later a county ambulance arrived and rushed Willson to the hospital.