She sat in the back of the courtroom, wearing oversize black sunglasses, watching as the former Democratic congressional aide was sentenced for slipping a sedative into her drink and then raping her. It was the summer of 2010, and she had just arrived in Washington as a student intern. When they met, she believed Donny Ray Williams Jr., the longtime aide and former staff director for a Senate Homeland Security and Governmental Affairs subcommittee, could help her find a job with Congress. But instead, she later told authorities, Williams drugged and assaulted her.