..he handed out condoms...he took video..
As far as I can tell, those two items are only supported by the testimony of one of the other defendents who turned state’s witness.
It may or may not be true; but he is supposed to have met these guys just minutes before all this happened!
The 49 second video was recovered from Vandenburg's cell phone after he tried to erase it and was played for the jurors at trial.
The DnA of one of the thugs was on one of the boxes of condoms.