Crime scene investigators took the stand in the case against Richard M. Allen in Delphi.
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"The 25-second clip showed Abby walking toward the end of the Monon High Bridge, which the teens traversed the day they disappeared. Libby, who crossed ahead of Abby, was recording with her phone. Walking behind Abby in the background is the man who became known as the "Bridge Guy," dressed in a blue coat and blue jeans.
Tuesday's showing was the first time prosecutors revealed a portion of the video that shows the man ― who they allege is Allen ― following the girls.
Law enforcement previously released a zoomed-in clip from the video that did not show Abby.
One of the girls was heard saying: "There's no path so we have to go down here."
So it seems like video shown is the BG walking clip we have seen before, but this time showing Abby and not zoomed in on BG ...he's following her in the background. I don't think he has spoken to them yet. I think the girls are getting nervous and don't want to pass him and something doesn't feel right and are trying to get away.