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pre-race activity on racetrack, near grandstands at Indianapolis Motor Speedway / high angle Indy race cars on pace lap, followed by early laps of Indy 500 auto race / Sam Posey racing Eagle Offenhauser #34 on qualifying lap / Bobby Unser racing Eagle Offenhauser #8 / Indy race car rolling over, finally coming to violent stop in the middle of the racetrack, emergency crews rushing to aid the limp body in the burning wreck, several men using fire extinguishers the driver is either Art Pollard or Swede Savage, both of whom died as a result of injuries sustained following racing accidents at the 1973 Indy 500 / Graham McRae crew member Armando Teran rolling along the pavement after being hit by a safety truck at nearly 60 mph, killing him / crew tending to Armando Teran, dead on the racetrack / safety truck driver crying / High angle safety crews and drivers rushing to another horrible accident near infield, fire extinguishers being used. 1973 Indianapolis 500 on May 30, 1973 in Indianapolis, Indiana (Footage by Getty Images)