I suspect that had the vigilance that prevailed in Wisconsin been evident in Colorado, the bloodbath might have been averted. By the same token, had the vigilance not prevailed here, I wonder if the bloodbath would have been in our state first. There's really nothing new about what's going on at all. For centuries, bands of barbarians swept across Europe and Asia, killing, maiming, destroying whatever or whomever got in their way. There were no laws but the survival of the fittest.
Gun control is irrelevant.
Just as the ancient barbarians found ways to kill and destroy without guns, so will our modern barbarians. Only national repentance will save us now. OK, let's look at that. They had access to pipes, fuses, household cleaning items, etc. Maybe these should not be available to the public, either.