Treason against the United States shall consist only in levying War against them, or adhering to their Enemies, giving them Aid and Comfort. No person shall be convicted of Treason unless on the Testimony of two Witnesses to the same overt act, or on Confession in open Court.
There's no real issue of Hassan's motive: all of his statements and writings show he murdered those people as an act of Jihad (war) against the United States and that he did it explicitly and deliberately to further the cause of our Islamist enemies. There are multiple witnesses to the murders, with Hassan screaming "Allah Aukbar" while committing them, and to his repeated earlier statements of bitter hostility ot the United States and sympathy with out Islamist enemies. Hence, a treason prosecution, adhering to the strictest constitutional standards, would be a slam dunk. Obama, by not doing such a prosecution, is himslef giving aid and comfort to the enemy and committing treason.
Who made the decision to remove this judge, who clearly had enough of this piece of muslim scum?