Moment road rage brute is caught punching driver unconscious in front of terrified kids on HIS OWN dashcam

THIS is the moment a raging motorist is caught beating another driver unconscious by his own dashcam. The victim's wife, kids and elderly parents were in the car when the incident unfolded. The video footage shows John Lee, 37, exiting his vehicle after the car in front of him came to a sudden standstill in...