So the first guy they suspected was George Hodgson Zinn who apparently said something like ‘I’d do it again’ when he was near some of the cops. They let him go because he didn’t match footage they have of the shooter and he was in the wrong place for the shot. Then they rearrested him for obstruction of justice. I’m not sure on the second, maybe it’s the same person and they got mixed up with a game of telephone.