I don't know what the Administration knew or thought it knew when President Trump ordered the killing. Apparently, both Presidents Obama and Bush II considered the idea but rejected it for fear of the potential consequences. There doesn't seem to be much doubt that the Major General was the instigator of terrorist actions against the U.S and our allies for many years. I do suspect, though, that President Trump has greatly improved his chances of re-election by taking concrete action to raise the personal cost of engaging in terrorism. It will be interesting to see what happens next.