WebSight and daughters have given me a lot to rethink....I've always thought L&A encountered BG earlier on the trail, but it had to be something minor, otherwise they would've called to be picked up. I thought he then approached from the North, but being the second time they saw him, and he's heading towards them on the South end, where there's nothing but private property, I never could understand why they wouldn't sense he was danger and run.
1) I honestly think now, there could absolutely be 2 perps...
2) He could've come from somewhere on the South end, passed them, and since we don't know where Abby was when Libby filmed BG, it's possible that when he turned back towards them, he was so close to Abby that they couldn't run. And Libby wouldn't leave her friend....so a film was the best she could do.
Whatever theory you believe in, it's still a sad, sad situation.
I still believe someone recognizes this "man," and if they haven't turned him in, hopefully they do the right thing.