A 46-year-old inmate in federal custody in Littleton died Friday, according to the Federal Bureau of Prisons. At 11 a.m., Jacob Robert Waddelow was found “unresponsive” at the Detention Center adjacent to the Federal Correctional Institution (FCI) Englewood in Littleton, a U.S. Department of Justice news release said. Staff initiated life-saving measures and emergency medical services personnel were summoned.