He found that the attack was a political offense on a military target and not of "an atrocious nature."
This week he was charged with a number of political offenses and ordered to be tried by a military court.
Ten Americans are imprisoned here, some for political offenses.
That led the Justices to muse on whether assassination could be considered a political offense.
He was often mentioned as among those who might be tried by Allies for political offenses in connection with the origin of the war.
Special "revolutionary courts" may operate outside the court system to try political offenses and crimes against the state.
But the process itself might at least have placed a political judgment on the political offenses carried out in his name.
It also said it had learned of fewer arrests for political offenses.
They argued that American investigators were studying political offenses, not crimes.
He served several terms in prison for political offenses.