(Portland, OR) -- The state Psychiatric Security Review Board is looking for a missing inmate they say is considered dangerous. Authorities say 50-year-old Brian Campbell unexpectedly left his treatment facility in southeast Portland yesterday morning. The board says Campbell is currently on conditional release. He's described as five-feet-nine-inches and 190 pounds with brown, shoulder-length hair, hazel eyes and tattoos on his chest, arms and right shoulder.