The local district attorney said Sigg , a student at Arapahoe Community College , will be tried as an adult . Jessica Ridgeway was arrested days night . He is accused of killing 10-year-old Austin Reed Sigg . Police say he confessed and part of the girl 's body was found at his house . He has his first court appearance on KCNC .
Jessica Ridgeway was arrested days night . He is accused of killing 10-year-old Austin Reed Sigg . Police say he confessed and part of the girl 's body was found at his house . He has his first court appearance on KCNC .