The police said in a statement that Henry was found in the road in Charlotte "apparently suffering life-threatening injuries."
Sources told the KY Post Henry was in North Carolina with his fiancee and police are saying he was involved in a domestic dispute with her. Henry apparently jumped in the back of a pick-up she was driving before eventually falling out of the truck.
Henry is currently on injured reserve with a dislocated forearm and has not played since Week 9.
The 26-year-old is in his fifth year in the league.