A Danbury Federal Correctional Institution inmate has pleaded guilty to possession of contraband.  35-year old Julian De Jesus Castillo had a razor blade taped to the underside of his assigned bunk.  He also had a 7.5 inch piece of flat metal that had sharpened edges and a point at one end concealed at the base of the pillar adjacent to the bunk.  Federal prosecutors say the objects were designed or intended to be used as weapons. Castillo is scheduled be sentenced December 19th, and faces a maximum of 5 years in prison.