I found this video of Marc Herremans on Ross Enamait's site

http://rosstraining.com/blog/

Marc was a contender for the Ironman World Championship in Hawaii after finishing 6th in 2001. In 2002 he suffered an accident which left him paralyzed below the chest. He began training three months after his accident and competed as a wheelchair competitor the following year. He competed every year thereafter until he won in 2006.