Looking at the tracks, it looks like a set of man tracks and a women or kid, They were not hunting Coyote or Fox, My neighbors house is about 300 yards back off the road, but were they came out on his drive way and shot, they were less than 50 yards from the house with a full moon. Looking at the tracks, you can see were they hid in the woods when his lights came on. He said the shots were all close together, and a High power rifle. He is a hunter and knows the difference between a shotgun and large rifle.
Ridding around the properties, the only other tracks I saw were Deer. Following the man tracks out, they parked a car at the Gas well, walked straight into the clearing by his house. He is single and just got back from a hunt in Montana. I think someone must have done this once before and got away with it, thinking no one lived there went back for a repeat performance.