I've counseled many younger people, HR is not there to help you - their primary mission is to help the company at all times. The same thing goes with college campus police.
She should have called the nearest city's police. If there was proof of a rape from her hospital visit they probably would have charged the guy.
On a side note it absolutely flabbergasts me that Microsoft offered a job to the alleged rapist! Surely it can't be that hard for them to find good employees.