1 We know that whatever ring(s) MB was wearing was not taken.
...1a We do not know WHY it was not taken. Was loser perp in a panic and (no matter his original intent) just wanted to be out of there? Was loser perp scared the ring would lead to him being caught, if taken? Was loser perp trying to fake out investigators somehow? We have no way to tell which of those is true - if any.
....1b We do NOT know if ANYTHING was actually taken. Or, if something was taken, what that means. Or, if nothing was taken, whether that tells us the loser perp had intended to take things originally, or had not intended to take things originally.
2 We do know that loser perp wandered the building and did burglar-like looking behind doors, breaking glass and forcing doors to get access at times.
... 2a We do NOT know why loser perp was doing those things. Was he trying to steal things, and simply inept? Or was he just trying to look like he was stealing, and forgetting to watch for someone coming?
3 "I wonder if this person driving around the gun store was ever questioned? Does LE know who this individual is? I suppose it could be traced if the individual was interviewed by LE".... Huh? LE asked for this person to come forward not long after the crime, and it's well known that LE has yet to discover the car, the license plate, the driver, etc, much less talk to that person.
... 3a Unfortunately we don't know WHY that person has decided to stay out of sight. Was it a reason related to the attack on MB? Or was it for some other reason (person who robs stores, person out with a non-spouse fooling around, person from way out of town, person who just randomly stopped from driving through rain, or whatever) who had no connection to the crime and just not wanting to be involved?