Surveillance video captured a knockout punch in South Florida last week that left the victim with serious injuries.
Two men appear to be arguing outside a pharmacy when one of them suddenly throws a punch. The victim backs away as the attacker punches again, this time knocking the victim to the ground and leaving him unconscious. The attacker then leaves the scene.
Watch the video above.
According to WTVJ, the attack occurred outside a Dania Beach Walgreens on the Fourth of July.
Police say the victim insulted the suspect's son before the attack.
The elderly victim was left hospitalized in critical condition with a broken jaw and bleeding in the brain.
Police are still looking for the attacker.
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