I happened to be in Phoenix when that happened. It was wild.
The "news" apparently discovered that the guy was a far-Left Clinton supporter, so they went into 'desperation' mode.
In the course of a couple of hours after the shooting, they had already gone down the entire list of all famous Republicans or Republican supporters to put the blame.
Rush Limbaugh was the first on I heard take the blame.
Then Sean Hannity.
Then Sarah Palin.
Then Bush.
But these were not the only ones offered up by the media as the shooter. Or the shooter's mentor. Or something?
They were literally going down a "Who's Who list" of Republicans and blaming all of them until they could find something/anything that would stick.
When they discovered Palin's graph with the rifle sights on it, she was deemed "it", in playground terms. And since all the Leftist media outlets work together, once Palin was deemed 'it', all the other media outlets reported it as if it was irrefutable, undeniable, fact. This issue is closed! The science is in! No need for any debate, as Leftists typically say.