Still rather home grown though. His uncle said that he came to the U.S. as a six year old and so far no one has indicated that he had left the country since (though his brother/co-conspirator did in 2012.)

And, yeah, the father came off...strangely calling him an 'angel' in the wake of a bombing that dismemebered and killed innocent by-standers (including small children), murdered an MIT campus policeman, carjacking, theft from the one they carjacked, had shootouts with the cops, and apparently had a bomb in their house/apartment that has to be detonated in a 'controlled explosion'.

Only 'angel' that can be compared to is the Armagheddon-type.