We don't know much about Chuck or Earl's activity, but I think it's possible to glean from other things that we know that Chuck and Earl are the ones in the customer buildings and might have been working that day assisting customers. It was a Monday, so I'd expect that they might be working and therefore that might rule them out for the critical time period. 2:45 - 5:00pm
Bobby and Scott are a bit more free wheeling in all this as both of them are potentially near teresa at 2:45 - 5:00 -- there is no iron clad alibi there. So if a suv did leave the property like the propane guy suggested. Who could of that been ? Bobby ? Scott ? Chuck ? Earl ? -- or teresa by herself ?
I keep mentioning the propane guy, and I'm not saying I'm confident of his sighting. Just kind of questioning the possibilities, if that was her suv he saw.
CA has no alibi according to Avery's appeal. I would imagine even if one or both of them were working, it wouldn't be hard for them to get away if they needed to. Fabian did state he arrived a little before 5PM, and at that time EA was working, so you definitely could be correct there. I have found nothing that states what CA was doing during the time.
IF the propane guys sighting of the SUV is legit, and the sighting was between 3:30-4 that would eliminate BD, unless Brendan and Blaine are lying about BD being home and asleep when they got home at 3:45. The rest of them are all fair game IMO.