Just a warning, this video is especially gruesome. At the 1977 South African Grand Prix, Renzo Zorzi had a problem with his car and pulled off the track. Zorzi's car quickly caught fire, and Zorzi safely jumped out. This is where the carnage began.

Two race marshals decided to sprint across the track with fire extinguishers. The first marshal barely made it, but the second one, a 19-year-old named Frederick Jansen Van Buren, was struck by Tom Pryce who was driving at 170mph. Van Buren was cleaved in half, and his body so horribly dismembered that his boss was only able to identify him by summoning all of the other race marshals and seeing who was missing. But it didn't stop there.

The 40-pound fire extinguisher Van Buren had been carrying struck Pryce in the head with such force that Pryce's helmet strap partially decapitated him. The fire extinguisher landed in the parking lot outside of the track, having flown over the grandstand. Pryce was killed instantly. Pryce's car continued to hurtle down the track at almost 170mph, ultimately crashing into the car of driver Jacques Laffite.