The death toll is rising in the mass shooting of people at an open-air country music festival in Las Vegas.

Police say the man believed to have been the shooter, 64 year old Stephen Paddock, who lived in a retirement home in a neighboring community, was killed by police on the 34th floor of a nearby high-rise hotel.

Clark County Sheriff's officials say they believe they have located a woman believed to have been associated with Paddock and who could have been an accomplice.

The investigation is open and continuing.