ILet's say that there was some sort of tracking for this, and the Aurora PD got an email at some point before the attack, with just that information. What are they going to do about it? None of the stuff is illegal. The purchaser didn't do anything illegal. Also, if they were getting this information, I'm sure this guy would be far from the only one that would get on the radar. So what action would they take, considering no laws had been broken?