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 armed with a pistol opened fire outside a casino in Reno, Nevada, on Monday, killing three people and critically wounding two others before he was shot and badly wounded by police, authorities said.