Boston Marathon bomber Dzhokhar Tsarnaev was formally sentenced to death yesterday, advancing him along the path to federal death row—a place that's pretty free of death. The US Penitentiary in Terre Haute, Indiana, currently houses 61 federal death row inmates; only three such inmates have been put to death since 1988, reports NBC News. In fact, there hasn’t been an execution since 2003, and there are three prisoners in the facility who have been waiting to be "dead men walking" for 22 years. "It will easily be a decade before the death sentence is even carried out," University at Buffalo law professor Charles Ewing told the Los Angeles Times last month. "People looking for closure are not going to get it. When it eventually happens, this will be way out of people's consciousness." More Death-Row facts, per NBC and the LAT: