It would be like using digital camouflage, or a decoy. They could have easily pulled a few choice quotes from the FR, referenced them in the planted evidence, and all of a sudden the coppers are looking at the "Vast Right Wing". They could kill two ideological birds with one stone
This dude may not have any message or point to make, it could simply be to create havoc and disrupt our comfy lives. I think he wants American's to feel pain and sorrow.
People who value liberty also tend to value the lives of others. In my less then humble opinion, there is an ideological link. This sniper could not be from RTKBA crowd and still hit innocents, unless they were collateral damage (OKC?). The sniper does not see civilians as an acceptable loss, but the primary target.
Just read your post. I happen to agree with you. See my #812.