Props to Reddit for This, Anyway

Folks there apparently already IDed cap worn by one of Boston suspects.  Labeled on side, "Bridgestone Golf," I believe. See my report on video, and see it here.  Suspects no doubt have ditched caps by now.  Could have left country, of course, by now.  If not, might be found rather easily due to tips. UPDATE:  Reddit folks now crowdsourcing the white cap--narrowed it down a bit, at least.  Question of what number (if it is a number) on side of his cap:  a 7? a 3?  maybe a Z?