On extreme distance shots (more than 1,000 yards), the earth's rotation does have an effect. More so if the trajectory is east/west rather than north/south. It's called the Coriolis effect. From Wikipedia on Coriolis: Ballistic trajectories The Coriolis force minutely changes the trajectory of a bullet, affecting accuracy at extremely long distances. It is adjusted for by accurate long-distance shooters, such as snipers. Unlike large-scale motions of air in the atmosphere or water in the ocean, a bullet's path is not constrained to be horizontal, and the vertical component of the Coriolis force is often more important than the horizontal component: westward shots hit low, and eastward shots hit high.
That might reveal the location, though, so will likely remain classified (but not definitely). Revealing the location would reveal a lot of other things
There are thousands killed every day. This, though, was a particularly stylish kill - an elegant riposte to those who have killed, maimed, tortured, raped and destroyed countless lives (certainly 10s of thousands - perhaps hundreds of thousands - displaced huge numbers causing refugees to flood other countries and who have destroyed countless ancient archeological treasures - a barbarian horde of contemporary Alarics. Kilroy: don't cry for me, Argentina - he said metaphorically