How do they feel about those who assault the United States like this asshat? Do they care about terrorism against their country?
Believe it or not, as a group, they are overwhelmingly, extremely jingoistic. They are the first to say: "nuke 'em".
I say as a group, because the black prison population is not usually greatly aware of what is going on on the world scene, and usually do not care, but if they do, it is usually on the side of the perceived "downtrodden".
That is my personal observation, after having worked in corrections for a short period of time.
Even the gang bangers are patriotic.
I am also reminded of the Hells Angels in the early '70's.
Sonny Barger actually asked the US Government if he and his cohorts could go to Viet Nam and kick some ass.
Tsarnaev would not last long in general population.
Most of the acts for which he is guilty are looked down on by the prison population.
Not that many of them would not use explosives and commit mayhem, but to do it for a political purpose?
Why, that's just stupid.
Chances are that prisoners would not like someone who killed children, if they hate people who rape children.