Twin Falls, Idaho ( KMVT-TV / KTWT-TV ) - A Twin Falls Man is behind bars after being charged with possessing more than a thousand pornographic images of children. Authorities arrested Stephen Roy Walker, 40 at a motel in Twin Falls. U.S. Homeland Security with assistance from the Twin Falls Police department served a search warrant. The investigation discovered Walker was allegedly distributing the images.  Bond was set at $500,000 and a no contact order was issued barring Walker from contacting the female relative.  Walker will next appear February 28 in Court.