Not accusing here just throwing out yet another theory---maybe a bit wild of a theory, but here goes-----
What if RM had a little side business if his own, besides scrap, and was meeting someone at the train station to complete a transaction of some sort? Could he be selling pills or some other narcotics? Certainly doesn't fit the profile of man-of-the-year that we are led to believe, but hey, you never know.
As per our verified insider, his car was seen on video after the scrap yard, so lets take Arrow out of the picture for the moment. Is it possible he went home, left his wallet on purpose, since he has done it before? Stashes pkg of narcotics under his seat, and rushes off to the station? Whomever he is meeting with gets in his car (no scent) And then something goes wrong? Or he meets someone somewhere else, and then his car is driven to the station by a shorter person after he is harmed?
Maybe IM didn't know about his dealings at all, or maybe she had Suspicions, hence stating he was in danger, etc....
Or maybe he was a courier of some sort for some other people, union big wigs, connected guys, or whoever. Maybe he "ran an errand" for them that day...was instructed to keep cell phone off during such dealings. Union guys being awfully quiet makes this theory a bit more plausible, as perhaps they are scared to talk. Or maybe he was set up.
Too many maybes! And basically zero facts.