Ms. Bryden was last seen in the area of the Factoria Mall in Bellevue. Her car, a burgundy 1991 Ford Escort was later found that day in the 4200 block of 124th Ave. S. E. , but she was not in the car. Her family and friends say it's unlike her to be out of touch for so long. Police don't believe she left on her free will. Search warrants describe the case as a murder investigation and name three men as persons of interest. Detectives demanded email accounts, bank information and cell phone records from the men -- who are from Portland, Bellevue and Redmond -- in hopes the information would somehow lead them to the missing mother.