The recent church shooting has everyone fortifying their positions on gun control. The would be mass murderer used a shotgun, despite the fact that he was apparently a prohibited person. However, there is a monkey wrench in that theory.
Under Texas law, a convicted felon may possess a firearm in the residence in which he lives, once five years have elapsed from the date his sentence was discharged. What this means is that, while he may not have been able to buy a firearm from a dealer (who would have had to follow 18 USC 922) there is no problem with him having a shotgun in his home.
Now suspicious me seems to notice that every time the gun control debate heats up, there is a mass shooting that seems to happen at the most opportune (for the Democrat gun banners) time. I am going to predict that this shooting, had Wilson not shot the bad guy in the face, would have been the poster child for nationwide UBC.
Virginia, Texas, and whichever state is convenient for the next time, are being used to push the narrative.