The 55-year-old man who was knocked unconscious during a brutal mugging outside a Brooklyn deli died of his injuries this week, according to police sources and his grieving family.
John Sarquiz was standing outside Dean Mini Market on 13th Avenue near 73rd Street in Dyker Heights around 7:45 p.m. Wednesday when a man punched him from behind, causing him to fall to the ground and hit his head, authorities and sources said.
