New Delhi: A dramatic video released has been released by authorities shows a student at a Seattle university pepper spraying and tackling a gunman during a 2014 shooting that left one student dead. On Wednesday, the video was released. The approx. one-and-a-half minutes CCTV clip shows how swiftly, the student used pepper spray, overpowered the gunman and took his weapon. Watch incredible video: Video courtesy-Associated Press/YouTube