The police said that a gunman had shot randomly at a group that was preparing to head home to California after a bachelor party weekend. Three people died in the shooting, and three others were injured.

Two men in town for a bachelor party and a local man driving through a parking lot were killed in Monday morning’s shooting outside a resort and casino in Reno, Nevada, police said.

Justin Aguila and Andrew Canepa, both 33 years old and residents of Ventura County, were in Reno with several friends to celebrate a bachelor party. They were on their way home Monday morning, waiting for a ride to the airport in the valet area near the main entrance of the Grand Sierra Resort, when the gunman shot them from behind, police said.