LE claims the witnesses were "not credible" and confirmed that some of the "sightings" from Monday were actually from Sunday, based on surveillance footage from the local shopping center where she'd been spotted.
The earring really only prove that she spent the night at Clint's on Christmas, returning home Sunday. Since they are meant to be left in the ear to stretch out the hole, Billie apparently just ASSUMED they were in her ears when she vanished. According to Clint and his GF, she removed them because they hurt her ears. She could only find one in the morning, and the other was found when C and N moved out of that house, ostensibly by DD.