Any theories on why they towed the incinerator to a very public Hangar (albeit late at night, but still it's an airport!, with surrounding businesses, security cameras, etc.) instead of doing their dirty deed at the "out in the boonies" farm? If they had placed the incinerator just outside the rear barn doors, who would have seen them? They would have been out of sight. And from what I understand, the incinerator doesn't blow smoke like a chimney does (and even still, it was late at night, so who would see it anyway?).
What were they avoiding at the farm? Did a previous nosy neighbour spook DM? Perhaps from a previous incineration (LB?).
I am convinced they are both guilty of murder 1. No doubts based on evidence. But a lot of their decisions leave me thinking, WTF? Perhaps it's just panic decision-making? But then you see so many signs of pre-meditation and planning.