Former NYPD officer found in frigid waters off Gilgo Beach

BABYLON, NEW YORK -: Surfers walk to a road at Gilgo Beach in Babylon, New York. (Photo by Spencer Platt/Getty Images)
LONG ISLAND - A former NYPD officer died after being found unresponsive off the coast of Gilgo Beach on Sunday, according to the Associated Press.
What we know:
Jack Shapiro, 54, was pulled ashore by a bystander while surfing in Long Island’s frigid waters.
Despite receiving CPR and being rushed to a nearby hospital, he was pronounced dead.
A family member told The Post that he was in great shape but that he likely suffered a heart attack.
Shapiro’s 19-year-old son, also named Jack, told The Post on Tuesday that "he had all the equipment for cold-weather surfing. He had the whole face, head, gloves, shoes — everything covered."
"They’re thinking it was a heart attack and then drowning. He was a good swimmer. He surfed all the time," his son said.
The backstory:
He spent a decade with the New York Police Department, retiring as a sergeant in 2013.
Friends of Shapiro described him as a passionate surfer who also enjoyed Brazilian Jiu-Jitsu, according to the Babylon Daily Voice.
The exact cause of death remains under investigation.