Gray Hughes has a video out where he goes over the bridge video and enhances the audio. It’s quite good. I know he’s hard to take sometimes but you can just move the video forward or back to just see what you want.
Here’s what his enhanced audio revealed. Some of it GH confirms, some of it is my opinion.
—Abby whispers something to Libby before she gets to the end of the bridge. It seems to contain the words “where” and “go” . I’m thinking she was asking to find a way for them to go to get away from RA.
—Then Abby says “don’t leave me up here”
—as Abby runs by Libby, Libby says “that be a gun”. It sounds like a quiet question to Abby. Abby responds with what seems like a breathless yes as she runs by. Abby then seems to something about the path.
—between RA saying “guys” and “down the hill” you can hear the gun rack.
Edit: forgot the video