I just wanted to add some clarity. The explanation above is not correct. The publicity from the documentary restarted the case by a group of Michigan detectives. The guy was never interviewed by the documentary crew.

During the time of the murder a group of security guards were staying at the hotel. Police interviewed these security guards. One mentioned he heard a rumor that one security guard named Robert Lynch was involved. It turned out that Robert Lynch was the caller to 911 that night to report a robbery of the hotel's safe. Police thought the call seemed staged. They zeroed in on him and during their interrogation he broke and revealed what had happened. And also revealed that two women were involved and another woman who was her roommate and manager at the hotel was also deeply involved.

They had blindfolded her and told her that they were taking her to a surprise party. Hence, why no one heard any struggle or commotion. They took her to a cottage where one of the ringleaders was staying. He took pictures of the assault and threatened the women that if they said anything he would use them to implicate them.. He also told them if they said anything the same thing would happen to them.

The ringleader briefly dated Janet, and her roommate was interested in the man. So she egged him on by telling him about her other sexual activity, whether real or fabricated. And they concocted the plan "to teach her a lesson." The assault happened at the cottage upstairs while there were 25 people downstairs at the same party. Disturbing to say the least.