A savage hammer attacker told his victim's mum "I've done a good job on him" as she went to help her injured son.
Thomas Nicholson had been walking the streets with a claw hammer when he lashed out at a man who had simply "glanced" in his direction as they passed in the street.
A court heard the victim, who had been on his way to visit his mother, was left in "agony", with blood pouring down his face and rang his girlfriend from the scene.
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