Spatter Matt was a bit wild. He was at the ledge, saw a large load-stone and and asked if it looked good. We all said no, it looked sketch. At that point Matt said he was going for it even though we continued to object. He launched and the load-stone erupted. Matt tried to grab something but to no avail. He came down the wall hit his foot pitched over backward smacked his head and shot toward the ground mostly head first. About 4 feet from the ground he came to a stop and the force of the fall spun him in a circle. The force of the spin caused the head wound to open and a stream of blood followed the arc of his spin. During the fall Jeff who was belaying took as many steps backward as he could. I manage to grab his shoulder after about a rotation and a half. I know he was about 4 feet off the ground because fearing spinal injury I was supporting his upper body with my arms straight out. His lower body was still being supported by the rope in his harness and his body was mostly level. Stacy quickly came around and took over control of Matt and did an assessment. Matt walked out on his own and Jeff carried his and Matt's pack. I was amazed Matt could walk because I saw his knee buckle when his foot hit the wall and it was not pretty. It was not a long fall but it was unsettling.