PORTLAND, Ore. (KOIN) – Clackamas County Sheriff's Office found a vehicle of interest amid an investigation into the death of a woman whose remains were found at Mt. Hood National Forest in September.

On Saturday, the Sheriff's Office said they found the vehicle, a 2002 red and gray Chevy Avalanche. It is not clear where authorities located the truck.

The finding comes after Thursday's arrest of 56-year-old William Glen Blake, who is suspected of killing his girlfriend Jennifer Ruth Stuart. Blake was arrested on several charges including second-degree murder, second-degree abuse of a corpse, unlawful use of a weapon, and tampering with evidence.

The Sheriff's Office also announced Saturday that authorities interviewed Blake's 17-year-old son.

According to the Clackamas County Sheriff’s

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