The University of Wisconsin has publicly issued their (with some names redacted) investigative report - see:
I was surprised to discover that the incident was a sexual assault of a young man, not a woman. From the report it states quoting the victim's statements:
"At one point, as they were seated at the corner of a large table in the suite, Chadima told John Doe that he thought that Doe might be gay, and that some of the other student employees thought Doe was gay. Doe told us he felt very uncomfortable and defensive but was not sure what was going on. He said that Chadima reached over and removed Doe's pants belt and then inserted his hand inside Doe's pants on his genitals. Doe reported that he was shocked and frightened and slapped Chadima's hand away and swore at him. He reported that Chadima said, "I thought you liked it" and "What are you going to do about it?" and "I could have you fired." Doe quickly left the room. As he was leaving the room, Doe reported that Chadima seemed to want to gloss over the incident as "just joking around."
The report continued indicating that at about 3:15 a.m. (apparently very soon after the alleged incident) Doe knocked on the door of his supervisor and was very upset.
Reading now of this incident I have two immediate reactions:
1.) We need to be very aware and publicly make clear that sexual assault victims often are men and boys (and not presume and state that victims are girls and women [alone] ) and
2.) Sexual assaults and rapes by those with a clear power imbalance such as evidently occurred here are very common against both females and males.
Note: 44.6% of women and 22.2% of men in a major recent study reported having been sexually assaulted. 18.3% of women and 1.4% of men reporting having been raped - the latter figures for men not including males being forced to penetrate another person [which would be included in the 22.2% figure above instead])
(see: http://www.cdc.gov/ViolencePrevention/pdf/NISVS_Report2010-a.pdf )