Investigators have named a "person of interest" in the disappearance of a 34-year-old mother who led a double life as a popular escort model, MyFOXColorado.com reported Friday.

Paige Birgfeld vanished three weeks ago while returning from a visit with her first ex-husband, who told police she planned to keep two appointments with "clients."

Investigators have twice searched the home of Lester Ralph Jones in connection with the case, and Friday named him a person of interest in the case.

Mesa County Sheriff Stan Hikley has said their investigation was focusing on the escort service Birgfeld was running at the time of her disappearance. Sources told MyFOXColorado.com that Jones was a client of the escort service, Models, Inc.

Click here to find out more at MyFOXColorado.com.