Maybe Fat Mikey should realize that OBL was not subject to the US judicial system, and therefore, not entitled to the protections it affords.
Ding! Ding! Ding! We have a winner!
Unfortunately, there are far too many who don't understand this.
Even if you look at it in terms of U.S. law, the international laws of warfare are enacted via treaty, and signed and ratified treaties become part of U.S. law.
It is legal to attack and kill an enemy general in wartime. It is legal to attack and kill a war criminal in wartime.
We minimized collateral damage and deaths of civilians. This raid was an extreme exercise in legality. It should be praised.