Boston Bombing aftermath, any similarity to the Lincoln assassination aftermath?

[Thomas Thorne]

If this person had some formal affiliation with a terrorist group which has declared war on the United States or has waged war with the United States,he should be treated as an enemy combatant.

Unfortunately the government will not do so because of his US citizenship even if any of the above are true.

BTW I recently discovered the Confederacy formally declared in May 1861 that a state of war existed with the United States.
Tom