My thoughts on BM. He’s a big, strong guy and not intimidated by rough terrain. He doesn’t need help making a body disappear. He is quite capable of carrying a 100 lbs over his shoulder into rugged back country and burying it deep.
About the 2 vehicles, if turns out that one of those cars was a coworkers’ , who joined BM on Mother’s Day morning, there is a possibility that the coworker knows something or that BM had already disposed of the body.
I’m thinking that if it was an act of rage, and BM was instantly regretful, he’d want to make ‘it’ go away as quickly as possible.
MOO