I'm stuck at the blue raincoat.
He must have put it on at the house, before going to the kennels. Had the rain started? He wanted to protect his button-down (seen in the earlier tree video) and just happened to have it on when a sudden need to kill arose? Or it was very intentional.
What was Maggie wearing? Did AM have the only rainwear in the group? When did he acquire it? Had anyone ever seen him wear it prior?
Did Alex have the prepared dinner? Did he mention his workmoneytroubles to Maggie? Then throw on his raincoat?
How will the inevitable television series present that final +/- hour?
The missing weapon. Is it missing because it has Paul's fingerprints on it? Did he attempt to wrestle it from his father, perhaps resulting in the catastrophic head wound when AM got control of the weapon?
On the jailhouse, is AM still chatting it up with family members? Holding court, as it were. Does NOTHING drop his ego down a peg? How is there even room in his small cell for his big head?
JMjumbledO