You sure are acting like it.
Only someone more than a bubble off level would blame the NRA for the acts of a madman... Which would place Mr. Guth in closer company with the lunatic who murdered those people than any NRA members I know.
How does Mr Guth feel about fast & furious and sending arms to Al Qaeda in Syria?
I think he is more than just wishing this would happen, I think that on a deeper level he is hoping that someone will read his words and take him up on it. That way he can get his blood-drenched fantasy fulfillment while feeling totally innocent. These people are evil.