This sniper is much more clever than the authorities realized. He seems very professional: deliberating, careful and absolutely dedicated to his mission (cold-hearted) - just like Lonnie Horiuchi, the FBI sniper who calously shot to death a woman holding a baby in her arms.
This guy has been very well trained and does not appear, to me, to be the type to "play" with the authorities. Once we know who trained him, we can start understanding this sniper. Before that time, all these so-called media "experts" and "profilers" are just pissin in the wind.