At least three people were killed and three others were injured by a gunman at the Grand Sierra Resort casino in Reno, Nevada, on Monday, authorities said.Reno Police Chief Kathryn Nance and Sparks Police Chief Chris Crawforth were among a number of officials who held an afternoon press conference to provide an update on the shooting,

A gunman opened fire early Monday morning outside a resort and casino in Reno, Nevada, leaving three people dead and several injured as guests were startled by a spray of gunfire that could be heard from their rooms,