Johnnie Williams enlisted in the U.S. Army, serving two years and one tour in Iraq. He would sustain an injury as the result of a Humvee accident in 2003 and would be introduced to adaptive sports as part of his recovery. He would make his way to a Paralympic Sport Camp hosted by the University of Central Oklahoma, a Move United member organization and take up the field sports of javelin and discuss. After medaling at the 2015 Parapan American Games, Johnnie would go on to compete at the 2016 Paralympics in Rio. Now he is a coach with Oklahoma Youth Parasports.