(Aloha, OR) -- An attempted carjacking suspect is behind bars after being arrested in Aloha. The Washington County Sheriff's Office says deputies responded to an assault with a weapon in the parking lot of a shopping center near 198th and the TV Highway Thursday. A man armed with a knife assaulted a woman and ran from the scene. The woman wasn't injured. A bystander saw the suspect hiding and called deputies. 33-year-old Jose Campos, of Portland, was arrested for robbery, unlawful use of a weapon, and attempted carjacking.