(Portland, OR) -- Portland Police are asking for help finding an armed robbery suspect who targets marijuana dispensaries. Forty-three-year-old Cory Jackson is believed to be responsible for five robberies in five months last year. He's also wanted for felonies in Washington, Arizona, and Nevada. Jackson often wears wigs to avoid being caught. He's described as white, five-feet ten-inches tall and 170 pounds. He has multiple tattoos. The one on his knuckles reads HOME SICK. If you see him, contact Portland Police.