A 47-year-old ex-prison guard from Kapolei pleaded guilty Monday to raping female inmates while he worked at the Federal Detention Center Honolulu, according to a plea agreement with the U.S.

Starting in 2014 and continuing until September 2018 Rivera worked at FDC Honolulu as a correctional ... In 2017 he initiated a sexual relationship with an inmate that lasted for months.