The suspect in the Tuesday night beating in Wildwood told police he believed the victim had been laughing at him.
Vincent DeSario is in the trauma unit of an Atlantic City hospital with head injuries.
Police say Alberto Martinez, a 28-year-old homeless unemployed laborer, was arrested within minutes after fleeing the scene on a bicycle.
He is charged with aggravated assault, possession of a weapon for an unlawful purpose and unlawful possession of a weapon, and is being held on $100,000 bail.
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Information from: The Press of Atlantic City