At least three people have died and five more were wounded after multiple shooters opened fire Sunday night in Glendale, Arizona, police said. Public information officer Moroni Mendez of the Glendale Police Department said at a news conference Sunday night: "There are three dead people from this incident, and there's a total of five other victims having sustained some sort of injury from either shrapnel or gunshot wounds." An unidentified witness told NBC affiliate KPNX of Phoenix that the restaurant El Camarn Gigante was holding a family-friendly Cinco de Mayo party with dozens of people of all ages in present at the time of the shooting.