A Real American Hero (1978)

When two boys are killed and two girls are blinded for life in a tragic accident, Buford Pusser, the town sheriff, is determined to get revenge. Though he must bend the law, Pusser is resolved to get the bootleg booze and dope king of the county who provided the poisoned moonshine that caused the accident. Based on the real-life folk hero whose career inspired the Walking Tall movies.