NOTTINGHAM, MD—Governor Larry Hogan on Thursday announced that the U.S. and state flags would be lowered to honor a fallen hero.

Police confirmed on Wednesday that Delmar police officer Cpl. Keith Heacook, 54, had died following a brutal assault Sunday morning at the Yorkshire Estates community, according to DelMarVaNow.com.

At 12:48 p.m. Wednesday, hospital officials in Baltimore pronounced Heacook clinically dead, though he is still on life support, Delmar Police Chief Ivan Barkley said in an evening news conference. Heacook’s organs will be donated.

“I need you to know that even with his sacrifice, he’s still a hero for someone,” Barkley said.

“Today I directed that U.S. and state flags fly at half-staff in honor of Delmar Police Officer Cpl. Keith Heacook, a 22-year veteran of the department who died in the line of duty,” said Governor Larry Hogan on Thursday. “We owe so much to the brave law enforcement officers who put their lives on the line every day.”

Flags will be lowered to half-staff until sunset on the day of interment.