I have seen this post, and to an amateur anyway, they appear to be good ideas.
So why, in your opinion, aren't things like that being tried? Or are they being tried as well?
None of this is occurring in any kind of a vacuum now -- every possible idea, from everywhere, is undoubtedly available to them.
I don't have a job where I put my life on the line every day...but I'm sure not about to cast aspersions on those who do for taking every action possible to both capture/kill the perps and remain living themselves.
If that means in this case being hauled out of my white Explorer or black Outback at a freeway roadblock, I'm willing to compromise that much of my "Constitutional freedom" or even my "dignity" for the much greater purpose of ending the reign of terror.
Dunno. I'm sure the traditional police work is being done. As for why no description of the shooter has been offered, it's tough to understand...