I'm not on the defensive, it's just highly unlikely this guy was trained in the US military as either a sniper or recon.
The only thing that's the same between a real trained sniper and this killer is one shot, kill or not, and move.
But then again, anyone who's played any online game with a sniper rifle has learned to target, fire, move.
Sure, I think there's more to this than anyone knows. But then again, the information available about who the killer is and what his motives are is non-existant.
It's obvious this person(s) has atleast planned this out and knows what he(they) are doing.
But if this is a highly trained sniper, I'd be very surprised as all shots have been relatively short ranges...
EDIT: Swoop, he shot one kid. AFAIK, that kid is still alive. All other targets have been grown adults, and almost all have been killed.
If nothing else, this will invite copycats who were thinking about doing it but assumed they'd be caught. This person has been out for almost a month taking people out, and they are no closer to catching him than they were on day 1.
-SW