Who are the Boston Marathon bombers?

So it's shaping up, if current suppositions survive scrutiny, that the bombers were Chechens who moved to the U.S. at a young age and then gave themselves over to the call of The Jihad. So, they were homegrown AND foreign AND jihadists AND white (literally Caucasians). That ought to punch every commentator's ticket. Hope the police bag this guy w/o any more trouble.