Boston police failed to arrest 'serial rapist' for years despite DNA evidence

It started off like countless other Uber rides in downtown Boston. A group of friends piled into a car after hanging out at a bar. Then, they started arguing. Most of the friends got out at their hotel, and the man offered to drive the remaining rider around to "collect herself." But when the woman asked the driver to drop her back off at the hotel, he refused. Instead, he took her to his apartment in Dorchester that Saturday in July 2016 and sexually assaulted her, police alleged in court...