Washington DC 7 hours ago Man arrested in series of Georgetown, UMD sexual assault cases Ernesto Ramon Mercado is accused of raping six women in D.C. and near the University of Maryland. News4’s Mark Segraves reports. Local 19:22 Georgetown, UMD serial rape suspect arrested: The News4 Rundown 3:16 Nationwide port workers strike continues for 2nd day 4:15 National Zoo conservation biologist talks pandas in the wild, in DC 2:31 Jury in Tysons police shooting trial sent home after being shown video they weren't supposed to see 2:27 Family remembers Maryland man killed in double homicide