Was Jayme targeted by human traffickers at Walmart in Rice Lake, WI? Would Denise's relatives be able to give LE the dates of or find receipts for recent trips there so that they can follow up? Did they go there after the party? If they were looking to abduct Jayme, why wait til the middle of the night?
Theory #7
Jim would have been shot first, after they kicked in the door (but he shouldn't have been home from work until 12:45 am or so, assuming he worked that night as told to Jayme's grandfather.) Nevertheless, at 12:31 am, dad hears a car pull up and goes to the door. They kick it in shooting dad once, and mom once. Jayme wakes up (it was a school night and she is a straight A student). Jayme starts yelling. Mom gets to the bathroom and calls 911. Shooter hangs up the phone (check for prints) and takes Jayme, disappearing in 4 minutes (probably out the back door as there are no bloody footprints).
But WHY????