A 17-year-old boy arrested in Columbus has pleaded not guilty to adult murder charges in the slayings of two teen brothers in Ottawa. Bond is set at 500 thousand dollars for Michael Fay, who is charged with killing 14-year-old Blaine Romes and his 17-year-old brother Blake last May at the mobile home he and his mother were sharing with the brothers and their mother. Fay led officers to the bodies.