This is the Pennsylvania Driver’s License photo of Pittsburgh synagogue suspect Robert Bowers, according to a law enforcement official familiar with the investigation.

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PITTSBURGH, Pa. – Officials have identified synagogue shooter as 46-year-old Robert Bowers.

Bowers is said to be a Pittsburgh resident.

Police say Bowers was armed with an AR-15 and several handguns. He is in custody, and police are investigating a motive.

At least eight people have been killed in Saturday morning’s shooting at the Tree of Life synagogue in Pittsburgh, according to NBC reports.

The gunman made anti-Semitic statements during the shooting, a law enforcement official said.

Social media postings that are believed to have come from Bowers are a focus of the investigation, a federal law enforcement official told CNN.

Shortly before the shooting, in an account on the Gab social media platform that authorities are investigating, the suspect is believed to have posted he “can’t sit by and watch my people get slaughtered. Screw your optics, I’m going in.”

The Gab account has frequent anti-Semitic postings.

Four police officers were among six people injured in the shooting, Pittsburgh Public Safety Director Wendell D. Hissrich said.

“It’s a very horrific crime scene,” Hissrich said at a brief press conference. “It’s one of the worst I’ve seen.”