My guess , for what it's worth, he caught them they ran he shot. Hence the violent scene next door. Then because they weren't on his property he had some explaining to do. Since he was already serving a deferred sentence he probably shouldn't have firearm so he had to improvise. Dismember, dump torso in river, bury or stash heads and hands separately to slow I'd. Take conveniently long vacation. But if it was a cartel, family may want to run also!