It looks like we will never know at all, and that is the part that bothers people. I also don't like how your coach didn't get informed of this until 2 days later. You need to know that in a situation where you are a public figure, that the one who is in mostly in charge of you in that capacity should be notified immediately. It seemed like they panicked and hoped that this wouldn't go public. From what I understand, it was police radio being heard that let the cat out of the bag, and was likely the reason the police made a public statement days later.
Everything about this looks fishy as hell. I will accept that we don't know what the hell happened, but I will not ignore that there are some interesting circumstances in this tale of Fuskerdom.