Jack Shapiro, 54, of Holbrook was identified as the victim after being pulled to shore by a bystander off the coast of Gilgo Beach just after 2 p.m. on Sunday, Jan. 19.

A man surfing in frigid waters off the south coast of Long Island on Sunday was pulled from the water by a passerby but later pronounced dead at a local hospital, authorities said. Jack Shapiro, 54, was found unresponsive in the waters off Gilgo Beach by a good Samaritan around 2:15 p.