Well given the lack of response by BB to all of the rumors, we are forced to speculate. I for one love a bit of speculation

It's fun !!
In regards to the timeline here's a possible scenario :
Thursday night the intruders go to the PS for whatever reason (has it even been established WHY they went in?) This would explain the photo on the couch with the luggage and the grassy knoll in the background....
Friday night was the BBQ, right? Perhaps the BBQ was a dinner to celebrate the intruders return from the PS? That would mean both intruders were back in the main house with all of the HM's and would give the follicularly blessed Justynn time to neck a Carlton Cold, tell the girls to get in the kitchen and clean up, take a swing at Ed, get tackled to the ground, and then be escorted out by Ninjas armed with light sabers and ambi pur products.