If you look at the Find Chelsea Bruck FB photos, and the Monroe Sheriff's FB, which has the same image, you can see they're taken around the same time with the mug hanging from Chelsea's fingers in some of the posters and a phone or camera in her hand. Those friends in those pictures had been in touch to identify themselves with the Sheriff's office soon after their picture went up on the page. There may be a chance that LE may have asked about the mug, what was in it, and if it could have been something that had had some ill effect on her, since I think LE may have had a chance to speak to the people around her in those pictures. None of that was discussed at the Sheriff's PC in relation to it being possible that she left the party for that missing hour her friends were looking for her.
Maybe Kilen can help us figure it out?
However, Chelsea, having been seen by the bonfire at 3 am, refusing a ride from a HS friend there, why would she if she didn't expect her friend to show up at some point? Between 3 am and 3:15 am what could have changed that she would then accept a less safe ride? She may have felt some measure of safety with this POI to walk toward the parking lot area, but it is hard to know how much, if not one other person at the concert seems to know him?
The vendor saw Chelsea and the POI just before they headed toward the parking lot. The vendor talked to them, Chelsea was said to have been okay, not off her rocker or anything at the time. My question is could the vendor have sold them a liquid drink of any kind? Could that drink have been spiked by the POI by the time they actually got to the car and had an effect on Chelsea, after 3:15 am when the vendor saw them?