The incident started when John Hill told Franklin Parker not to park on the grass in their Fort Lauderdale neighborhood, according to witness Brandon Jones, who was walking with Hill at the time.
Parker allegedly threatened to "run ya'll over," Jones said.
A surveillance camera captures the rest. Hill can be seen running from a car, which drives onto the sidewalk in pursuit, hitting Hill and leaving him pinned underneath.
Parker can be seen exiting the vehicle, then exchanging blows with witnesses at the scene. Bystanders eventually overcame Parker and fought him to the ground.
After about a minute and a half, witnesses turned their attention from Parker to Hill, who was still trapped under the car.
By that time, police had arrived on the scene and joined the group of bystanders in lifting the car long enough to drag Hill to safety.
Hill fractured his pelvis and was recovering a rehabilitation center.
Parker was arrested and is being held on a $16,000 bond.