3 Dead in Shooting at Vegas Restaurant, Walmart

By Associated Press

06/08/2014 at 07:15 PM EDT

Two suspects shot and critically injured two police officers at a Las Vegas pizza restaurant Sunday before fatally shooting a third person and killing themselves inside a nearby Walmart, investigators said.

The spree began around 11:30 a.m. Sunday when a man and woman walked into CiCi's Pizza and shot two officers who were eating lunch, Las Vegas police spokesman Larry Hadfield said.

One of the suspects yelled, "This is a revolution," but the motive for the shooting remains under investigation, Hadfield said.

The two suspects then fled to the Walmart across the street, where they shot a person inside and then killed themselves in an apparent suicide pact, Hadfield said.

The condition of the two officers was not immediately known, he said, but an update would be provided later Sunday.

"I think in any case where people are ambushed and shot it's upsetting to the public," Hadfield told The Associated Press. "We don't know anything about the suspects yet and are trying to learn more."

The names of the suspects and victims and their cause of death will be released by the Clark County coroner's office.

The restaurant and Walmart remained closed as detectives processed evidence.