These two guys are innocent of the bombings.
There has been no video of them doing anything other than walking around with backpacks.
If, you are from a war torn country that has an insurgence of radical islamist and all the sudden you see your picture blasted across America as "the alleged or suspected bombers" and there is a manhunt for you!
You panic and run; see a cop outside your dorm, panic and it gets worse; got o get gas, panic and now it's insane; the rest is still playing out.
One of them is now dead so, there is no turning back for either side now.
I'm not saying any of what I am posting is true but, stranger things have happened.