Darryl Stingley spent more than half his life in a wheelchair, a symbol of the violence of the NFL, where large bodies collide at high speeds on every play. He was only 26 when he clashed head-on with the Raiders' Jack Tatum during an exhibition at the Oakland Coliseum as they leaped for a pass. That play has haunted the NFL for nearly three decades. On Thursday, the aftereffects of Stingley's grievous injury finally took his life at age 55. See MHN Memorial link for more info.