Yes, that should answer many questions. Besides three grown men dying in this man's backyard, my biggest red flag is why didn't he notice their cars in his driveway for two days? The homeowner is claiming he slept most of those two days, but something doesn't add up.
Yep, he knows more than he is saying the cops know that.
he says he never went out front. But...he has a dog. Does he want us to believe for 2 days the dog never went out front OR out back? He would have seen cars or bodies depending on which way they went out.