There was link posted tonight indicating they have all three phones-- James, Denise and Jayme's. However they might have been checking to see if anyone in the household had a hidden burner phone. That is a trick child predators sometimes get their victims to do-- purchase a burner phone to secretly text. I don't think this is likely, but if it is the case then LE should also be able to tell if an extra phone number frequently pings near their house or if an there is a device that they don't have in their possession that frequently logged onto the family wifi. They could have been looking for many things with the electronics sweep though-- Memory cards, USB drives, i-pods, old phones no longer used, old computers in storage, hidden cameras, nanny cams, trail cams, electronic bugs, etc. JMO.