From Ammoland:

The revelation comes 3 ½ years after a gunman opened fire at the West Freeway Church of Christ in White Settlement, Texas, only to be shot dead by armed parishioner Jack Wilson just a few seconds later. The shooting, which was live streamed at the time—the video warped across social media—shows at least a half-dozen armed citizens in the church sanctuary with drawn guns after Wilson fired the single shot that stopped killer Keith Thomas Kinnunen before he could wreak more havoc.