A Kings Park man who was struck by a van while bicycling in his hometown Friday morning has died, Suffolk police said.

Fourth Squad detectives said William Parmentier III, 50, had been in critical condition at Stony Brook University Hospital with a fractured skull after the 10:40 a.m. crash on Pulaski Road, east of King Street.

Parmentier subsequently died from his injuries, police said Saturday.

Detectives said Parmentier was riding his bicycle east on the north sidewalk of Pulaski Road. When he tried to cross to the south side of the road, he hit the side of a 1995 GMC van driven by an Islip man, who was not hurt.

Police urge anyone with information about the  accident to call the Fourth Squad at 631-854-8452.

With Ellen Yan

Suffolk County Sheriff Errol Toulon Jr. spoke with NewsdayTV's Ken Buffa about what life is like for the Gilgo Beach serial killer Rex Heuermann in jail. Credit: Anthony Florio; File Footage; Photo Credit: Newsday / James Carbone, John Paraskevas; AP / David Bookstaver, Clark County Sheriff's Office, Richard Drew, Mitchell Tapper, Don Ryan; Peconic River Sportsman’s Club / Kerry Goldberg

'He will be ... coming out of prison in a body bag' Suffolk County Sheriff Errol Toulon Jr. spoke with NewsdayTV's Ken Buffa about what life is like for the Gilgo Beach serial killer Rex Heuermann in jail.

Suffolk County Sheriff Errol Toulon Jr. spoke with NewsdayTV's Ken Buffa about what life is like for the Gilgo Beach serial killer Rex Heuermann in jail. Credit: Anthony Florio; File Footage; Photo Credit: Newsday / James Carbone, John Paraskevas; AP / David Bookstaver, Clark County Sheriff's Office, Richard Drew, Mitchell Tapper, Don Ryan; Peconic River Sportsman’s Club / Kerry Goldberg

'He will be ... coming out of prison in a body bag' Suffolk County Sheriff Errol Toulon Jr. spoke with NewsdayTV's Ken Buffa about what life is like for the Gilgo Beach serial killer Rex Heuermann in jail.

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