Have no idea what this means: Now they say suspects DID NOT rob 7-11. "A statement from State Police spokesperson Dave Procopio says 'the bombers did purchase gas at a gas station in Cambridge later in the chain of events and we recovered images of them there.'" Media reported robbery for many hours. But now raises question: Why did they shoot MIT officer, who it's said was just sitting in car and not approaching them--especially since they did not rob the 7-11 and being hunted for that?