United States Marine Corps Sgt. David Lam, an assistant warehouse chief with 3rd Transportation Support Battalion, pictured here aboard Marine Corps Base Camp Hansen in Okinawa, Japan, was one of seven Marines who acted quickly to save an U.S. Airman’s life following a recent motorcycle accident Dec. 31, 2018. Lam, a native of San Jose, Calif., reported the accident, checked the injured and stood in the middle of the road directing traffic to allow emergency services to arrive. - United States Marine Corps Sgt. David Lam, an assistant warehouse chief with 3rd Transportation Support Battalion, pictured here aboard Marine Corps Base Camp Hansen in Okinawa, Japan, was one of seven Marines who acted quickly to save an U.S. Airman’s life following a recent motorcycle accident Dec. 31, 2018. Lam, a native of San Jose, Calif., reported the accident, checked the injured and stood in the middle of the road directing traffic to allow emergency services to arrive.