Alright, so I just walked down and completely around the pond where Will Jacobson was recovered. Turns out, there IS a foot path that goes around it on the road-side as well as the other side, but it's still incredibly unlikely to fall in from there. In addition, I had been remembering the incline as being STEEPER than it is. Over 90% of the pond, if one were to fall, no matter how close to the water itself, there would be no 'tumble in' scenario. You would hit the ground, go "damn," and then get back up. There is only one section where one could actually tumble in, and 1) this would cause injury, and 2) The water over the ENTIRETY of the edge of the pond is extremely shallow, less than a foot deep - for two or three feet into the pond. One would have to actively WADE in in order to get to a point that was more than ankle deep. Even if he had tumbled in from that one small area where it's vaguely possible to do so, he would've landed in the shallows and simply stayed there.