The New York City Police Department on Thursday released surveillance footage they say shows the suspect they believe threw a fatal sucker punch that led to a man's death on a Brooklyn boardwalk earlier this month.

FATAL STABBINGS OF MOM, 3 KIDS LEAVE RELATIVES, FRIENDS DEVASTATED; SUSPECT IN CUSTODY, AUTHORITIES SAY

Police responded to reports of an assault at the Riegelman Boardwalk East—a walkway between Brooklyn’s famous Coney Island and Brighton Beach boardwalks—around 5:45 p.m. on July 9, News 12 Brooklyn reported.

Dimitry Goldfarb, 52, was found lying on the ground with head trauma. He was rushed to a nearby hospital and eventually transferred to another one, where he died.

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The video released does not show the alleged attack.

The NYPD is asking the public to help them identify the male suspect and the woman seen with him.

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Anyone with information is encouraged to call Crime Stoppers at 1-800-577-TIPS (8477), visit http://www.nypdcrimestoppers.com, or text 274637 (CRIMES) and then enter TIP577, PIX 11 reported.