Detectives with the King County Sheriff's Office impounded the black 2003 Volkswagen Jetta and were getting a search warrant to look for clues inside it.

The sheriff's office said it would not release details about exactly where the car was found or by whom.

News of the discovery spread quickly to the Web site friends and family set up after Pietz disappeared on Jan. 29. [ Video: Mother, Sister Of Murdered Lynnwood Woman Speak]

In one forum, someone wrote, "Thank God! I hope whoever did this to her is shaking in their boots right now. I pray that they will get the needed evidence necessary to move this case forward."

Her body was found Feb. 6 in Burien. The medical examiner's office said she was strangled.

No arrests have been made in the case.

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Previous Stories: February 9, 2006: Police Sift Through Evidence In Lynnwood Murder Case February 9, 2006: Detectives Confiscate Items From Dead Woman's Home February 8, 2006: Body Found In Burien Identified As Missing Woman February 3, 2006: Mystery Surrounds Woman's Disappearance