Ok, the article in post 4: State troopers saw their cars, pulled in to investigate, and at that point actually saw the people in question walking back to their cars. Interesting. And interesting too that some were “local” i.e. 5 College students, while at least one was from Cambridge (say, wasn’t that city in the news for another muslim reason recently?), and one from New York city (also a target of the Tsarnaev brothers).
The question is, "What did these people do BEFORE they were seen walking back to their cars?"