Id like to dispel the notion that the shadow in the lower left of Liberty's photo of Abigail contains one or two vehicles, alternately seen as a truck, SUV, van, car, etc. And that there are 2 or even up to 6 people in the shadows of this photo. If you calculate the distance from Liberty to this shadowy area, knowing that the bridge is at most 70 high, knowing that the creek is about 130 wide, guessing that the shadow area is no more than 70 horizontal feet from Liberty (and I think that is generous)
simple triangulation gives you a distance to the shadow beneath the tree of around 100. This morning I took this photo. From where I am standing , the blue vehicle near where the two people are standing is around 100 (measured via google map distance tool). IMO the size of the blue vehicle and the size of the people show you that there is no way that the shadow area of Libertys photo contains vehicles and/or people.
In addition, please look at the size of the trees in Liberty's photo. If the one in the shadowy area were actually next to a vehicle, calculate just how big the diameter of that tree would have to be. Do you see any trees closer to Liberty that look that big?
I might be off a bit in my calculations and guesstimates, but I don't think enough to change the conclusion that there cannot possibly be vehicles in that photo.
I know we all want this sick SOB to be found, and found quickly. I urge caution in analyzing photos - always keep size and perspective in mind.