Two Arrested After Police Find Fentanyl and Firearms at Corvallis Park

CORVALLIS, Ore. — Two men were arrested following a firearms and drug investigation at Pioneer Park in Corvallis early Oct. 15, after officers discovered suspected fentanyl, two firearms and a large amount of cash.

According to the Corvallis Police Department, officers responded at approximately 12:52 a.m. to a reported disturbance at Pioneer Park in the 1300 block of SW Philomath Boulevard.

Upon arrival, officers contacted three people near a parked vehicle. They identified the driver as Lloyd D. Leininger, 32, of Sweet Home, and a passenger as Rick L. Walnum, 48, of Brownsville. A third man, 44, who had no fixed address, was standing near the passenger side of the vehicle.

During the investigation, officers observed indicators of controlled substance activity. A search of the vehicle led to the discovery of a firearm and evidence of controlled substance use.

Officers subsequently obtained a search warrant for a backpack associated with Walnum. Inside, they found a substantial quantity of suspected fentanyl concealed in a false container, a second firearm and a large amount of cash.

Walnum was arrested on charges of delivering fentanyl, possessing fentanyl as a commercial drug offense, being a felon in possession of a firearm and unlawfully possessing a concealed firearm.

Leininger was arrested on charges of possessing methamphetamine and unlawfully possessing a concealed firearm.

Police seized the suspected fentanyl, both firearms and additional evidence related to controlled substance offenses.

The Corvallis Police Department is asking anyone who witnessed the incident or has information related to the investigation to contact the department at 541-766-6924.

The information was released by the department on Oct. 19, 2026.