Why not have a drone fly over and be done with it?
Certainly those assassinated in Pakistan didn’t get any form of a trial at all. So to many our system of justice is a farce.
The justice system is a farce, laws have not been equally applied for a long time. That said, the justice system has nothing to do with war. Thomas Jefferson would probably be fine with killing our enemies, I think the Constitution applies to USA citizens, not the world.
There is no hope for USA people to learn these harsh truths without a domestic war. Plan ahead, stock weapons, and form up right wing death squads, they’ll be needed.