If these two are the real suspects, they are radicalized young Muslims.
Glad we can agree on something, FRiend.
I would look real hard at the possibility these are muslim refugees with some local knowledge of what Patriots Day is.
The supposed lack of international terrorist chatter post bombing makes me think this could be homegrown or state sponsored. Iran?
they are awfully well organized to be a couple of cranks without any backing...they did a lot of little things very ‘well’.