Autos seem to be the connecting dots, Ray was killed in his car and it stolen, recovered later with a young couple in it, they went to trial but nothing came of it. Joe goes to auto part store before murdered. Suspect or rumored to be killer in both cases is car and tractor dealer.
Neff moved in vehicle to dump spot, with as much blood found at bar, there had to be blood in the vehicle that moved him. Had to be put up and cleaned or destroyed, who could do that? You got it back to autos, dealers, mechanics, junk haulers
Autos will be the key piece and who could hide or cleanse the problem