[who knows what evil?]

If Washington, D.C. had 'open carry'; the twelve that died yesterday might still be alive.

Wouldn't you like to hear someone say that on some national cable show today?

[Ouderkirk]

If Washington, D.C. had 'open carry'; the twelve that died yesterday might still be alive.

No, probably not. The perp didn't start shooting until he was inside an access restricted facility. It doesn't mean that there wouldn't have been people who were armed, but most workplaces don't allow firearms inside the facility anyway.