I do not believe this to be likely but since so very little has been released by LE to actually sleuth, I figured I'd drop in a hypothetical.
So not being completely familiar with the area, how far away could the killer(s) have had a small boat where he/they could have plausibily gone by water to and from this area disguised as fishermen perhaps?
So not being completely familiar with the area, how far away could the killer(s) have had a small boat where he/they could have plausibily gone by water to and from this area disguised as fishermen perhaps?