"Buford Pusser was a high-school football and basketball player and was 6 feet 6 inches (1.98 m) tall. He joined the United States Marine Corps when he graduated from high school. His service ended during his United States Marine Corps Recruit Training, when he was given a medical discharge for asthma." https://en.wikipedia.org/wiki/Buford_Pusser
He was just a naturally BIG and intimidating guy that wanted to stand against crime and bad people.
https://www.youtube.com/user/BufordPusserMuseum/videos
"Pusser died on August 21, 1974, of injuries sustained in a one-car automobile accident..." "Earlier that day, he contracted with Bing Crosby Productions in Memphis to portray himself in the sequel to Walking Tall. That evening, returning home alone from the McNairy County Fair in his specially modified Corvette, Pusser struck an embankment at high speed that ejected him from the vehicle. The car caught fire and burned." https://en.wikipedia.org/wiki/Buford_Pusser#Death
https://www.roadsideamerica.com/story/35769
Some people think that it was more than simply a car crash.
https://www.roadsideamerica.com/story/11753
Sheriff Buford Pusser: (Jerry Skinner Documentary) https://www.youtube.com/watch?v=jAX4-2WU16A
Unfortunately, car crashes are a common occurrence.
https://nypost.com/tag/car-crashes