Here we go again... LAS VEGAS - Two suspects shot two police officers in a pizza parlor Sunday, then ran to a nearby Walmart where they killed a third victim before taking their own lives, police said. Police said no other suspects were being sought. The violence erupted about 11:30 a.m. at a Cici's restaurant on Nellis Boulevard. Two officers from the Las Vegas Metropolitan Police Department were eating lunch when a man and woman "came in an immediately engaged the officers with gunfire," Officer Laura Meltzer, a spokeswoman for the department, said in a statement. Police respond to a deadly shooting at a Walmart in Las Vegas. Erik Verduzco, Las Vegas Review-Journal Witnesses in the restaurant said they heard the suspects say, "This is a revolution." After severely wounding the officers, the suspects ran to a Walmart kitty-corner to the restaurant. They shot and killed a person near the entrance to the store, than ran inside the Walmart, where they committed suicide, Meltzer said. "There was some kind of suicide pact," Deputy Sheriff Kevin McMahill told the Las Vegas Review-Journal. Meltzer said in a statement two police officers were killed, but that has not yet been confirmed. Another police spokesperson, Larry Hadfield, told the Associated Press the condition of the two officers was not immediately known. The Review-Journal said one died at the scene, while the other died later in surgery. "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." "We express our deepest condolences to everyone who have been affected by this senseless act of violence," the Wal-Mart Corp. said in a statement. "Our store is currently closed. This is still an active investigation and we are working with local police."