NEW YORK (CBSNewYork/AP) — A state police trooper has died more than three years after he was struck by a distracted driver on the Long Island Expressway, New York State Police said Saturday.

Trooper Joseph J. Gallagher was severely injured as he assisted a disabled motorist on an overpass connecting the LIE to the Sagtikos Parkway on Dec. 18, 2017.

READ MORE: Stephen Sondheim, Legend Of The Broadway Musical, Dead At 91

State police said Gallagher was putting out flares to warn oncoming traffic, when a vehicle came from around the corner a struck him. He was hospitalized with a severe head injury.

READ MORE: NYPD: Landlord-Tenant Dispute Suspected In Canarsie Fire That Seriously Injured 2

Trooper Gallagher was a member of the state police since 2014.

MORE NEWS: Rangers Erupt In Third Period, Continue Fantastic Start With Win Over Bruins

(© Copyright 2021 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)

CBSNewYork Team