From what it sounds like so far, LE is grasping at weak straws and trying to make something stick, somehow, with virtually nothing to work with. Unless I am missing something ....
1 They have no video, just some unnamed guy's word that he was shown one at one time by a Pearcy.
2 They also just have his word that what he was shown, on it he heard (not saw) the other of the Pearcy bros on the video.
So on that basis, they arrest the Pearcy bros for not having and giving them this perhaps-mythological video that some guy said existed at one time? Wow.
Unless I am missing something, this is scary law enforcing, and not in a good way.