‘Strange circumstances’ involved in woman’s disappearance


HILLSBORO, Ore. (KOIN) – The car of a missing 23-year-old woman who hasn’t been seen since Saturday was found about 9 miles from where her cell phone was turned in at a Dairy Queen.

Demi Helenius was last seen at a self-help conference in Portland Saturday night, the Washington County Sheriff’s Office said. But the “strange circumstances” surrounding her disappearance continue to mount, although detectives said there were no immediate signs of foul play/.

Monday afternoon, authorities said her black 2013 VW bug with Oregon license plate 855-HNH was found in Cottage Grove. “A very cursory examination of the car at the scene found no foul play,” officials said, but the car will be processed more thoroughly.”

Sgt. Dave Thompson, a spokesperson with the sheriff’s office, said Helenius disappeared from a self-help conference in Portland on Saturday night where she was attending the Landmark Worldwide Forum at the Embassy Suites Hotel over the weekend. According to the Landmark website, the conference in Portland is scheduled to conclude on Monday.

23-year-old Demi Helenius shown in a photo released by the Washington County Sheriff's Office.

The conference event on Saturday ended around 10 p.m., according to the sheriff’s office.

“[Helenius] lives at home with her parents and is very good about calling and texting when she leaves somewhere.,” according to Thompson.

She did not call Saturday night and never returned home.

“After some strange circumstances, Demi’s phone was given to a worker at a Dairy Queen in Creswell, Oregon last night by a man passing through the drive through,” Thompson said. Creswell is about 2 hours south of Portland along Interstate 5 in Lane County.

Helenius was not at the conference on Sunday and has not contacted her family.

Anyone with information is asked to call 503-846-2500.KOIN 6 News Reporter Lisa Balick contributed to this report.

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