I am curious how you came to that conclusion from the video - I see no reference to them in your link.
From the report that mentioned that particular neighbor I came to a different conclusion; that the 'tip' I read about was likely
someone, not necessarily her, who complained that there had been an odor- in fact it could have been several tips from multiple neighbors since, as that Sargent reported, the remains were not far from the road.
http://www.nbc29.com/story/26822378/neighbors-react-to-human-remains-believed-to-be-hannah-graham
So I haven't seen any reports that say they "DID NOT Call in a report".
To clarify something else, in rural areas, dead animals are not that unusual - a dead dear off the road, a bloated cow in a field, etc.
:cow: