Raymond Moore struggled through his speech, pausing as the emotion of losing his son, a New York City police officer killed in the line of duty, took hold of him on Friday.

“Today is a very tough day for me because it just opens up old wounds,” he told a few hundred police officers, city officials and others who attended a street-renaming ceremony in honor of slain Det. Brian Moore in front of the 105th Precinct in Queens Village.

“But the renaming of the street today shows how much the people of New York appreciate Brian,” said Raymond, 57, a retired NYPD sergeant.

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From now on, 92nd Avenue at the intersection of 222nd Street, near the 105th Precinct, will be known as Detective 1st Grade Brian Moore Way. Moore’s mother, Irene, said she was grateful for the unexpected honor that keeps her son’s memory alive.

“For him, it was a life well-lived, just cut way too short,” she said in an interview.

Moore, 25, of Massapequa, was shot in the head on May 2 while on patrol in Queens Village. He died from his injuries on May 4.

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The accused shooter, Demetrius Blackwell, 35, of Queens Village, has pleaded not guilty to charges including aggravated murder and first- and second-degree murder.

Moore, a Plainedge High graduate, entered the force in July 2010 and joined the 105th Precinct in May 2012. Family members said he loved his job. He amassed 160 arrests during his short career.

His mother said some people who her son arrested reached out to offer condolences.

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Police Commissioner William Bratton said Moore’s “too-early death” serves as motivation to keep officers and the city safe “so that other families will not experience what the Moore family has had to experience.”

And “our police family” will not have to lose another officer, he said. Bratton said he wished that would be the case, but that his wish was probably unlikely.

“We are the police. We go in harm’s way. That’s what we do. . . . That’s what Brian certainly did every day,” he said.

Patrolmen’s Benevolent Association president Patrick Lynch said Moore was courageous, like his father.

Lynch told a story of a conversation with the elder Moore in court last week “when the miscreant that killed our hero sat before us.”

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“This is now my job. My job is make sure that there’s justice for my son,” the elder Moore said, Lynch recalled.

In that quest, the family won’t be alone, Lynch promised. “We’re here to join you in that job,” Lynch said.

At the end of the ceremony, police and others whispered kind words to Irene Moore. She held a replica of the street sign under her arm.

New York City Councilman I. Daneek Miller (D-Queens), who introduced the legislation for the street renaming, said he told her it was a privilege to honor her son.

Irene Moore, 57, of Islip, described her son as “a best friend to a lot of people.”

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“He was one of my best friends, my daughter’s best friend,” she said.