[HTML1] In the video, the crack of a crowd-control projectile is followed by heavy smoke. People scream and run toward the smoke, converging near the ground over the body of a young man. Another crack is heard and more smoke billows. Out of that plume, a crowd emerges carrying the man who appears bleeding and unresponsive. The injured man has been identified as former Marine Cpl. Scott Olsen, who deployed twice to Iraq with Headquarters and Service Company, 3rd Battalion, 4th Marines based out of Twentynine Palms, Calif. Olsen, who was a tactical communications Marine,  got out of the Corps…