https://www.facebook.com/chenango.sheriff
Check the Jan 10 Media Release about JR, and a comment by BB 12 hours ago.
I saw this question asked somewhere else as well! I'll find the link in a second. I believe it must be GR signed into her account, since he has her password and has been making changes to her page.
ETA: Okay, it was the same person, BB, asking the same question on the Missing Person page: https://www.facebook.com/photo.php?...05231622.21590.116018661901063&type=1&theater
When someone is logged in from a mobile device, it shows a little phone icon by your name in the chat list, so that's probably what she was seeing - and it was prob GR who was logged in!