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

He says one of them yelled, “This is a revolution,” but the motive for the shooting remains under investigation.

Investigators say the two suspects then fled to the Walmart across the street, where they shot a person inside and then killed themselves.

Hadfield says the condition of the two officers wasn’t immediately known.