CORVALLIS, OR -- A Corvallis woman disappeared 31 years ago under suspicious circumstances and police have never given up on the case. Patricia Lynn Swanberg was reported missing when she didn’t show up for work on August 12, 1992. Her on-again, off-again boyfriend reported last seeing her August 10 and her unlocked car was found abandoned in downtown Corvallis with her purse still inside. While the trail has gone cold, detectives say it's still an active case. 

"The majority of the leads ran out within the first year," Corvallis PD Lt. Ben Harvey tells KBND News. "She was pretty young when she disappeared - only 34 years old. And so, it’s been a long time."

Her siblings and two children believe she’s no longer alive, but her body was never found. Over the years, investigators used new technology to try to track her down, without any sign of her. They don’t think she just went off the grid, "It’s really difficult in the modern day to exist without engaging with society in some way, where you can be seen."

There was never an official suspect, but Lt. Harvey says they looked into a man, "The person of interest who we thought would be a suspect has since deceased." He says he died five years ago, taking with him any possible connected leads. 

Harvey believes someone has the missing link, even if they don't realize it, "[They] Heard a story in passing, perhaps, or even directly from someone who knew Patricia. Or maybe the significant time jogs their memory and they remember her directly by having encounters with her. We’re looking for any information that would help us understand where she might’ve been."

She was known by several names, including Patricia Wilson, Patricia Lynn Brinkley, Patricia Pursifull and Tequila Robinson. "Ultimately, if someone had heard what happened to her; maybe even third or fourth hand information that at the time might not have seemed credible to them," says Harvey, "Or maybe seemed like a rumor they didn’t want to spread - that kind of information could be helpful for us, at this point."

Anyone with any information is asked to contact Corvallis Police. You can remain anonymous. Tips can be submitted online HERE, or emailed to Detective Christy Molina HERE.