6) Most mass murderers are leftists or sometimes atheists. Do not fear the Republican with a gun, but run from the leftist with any weapon.
I'm getting too old to run. Fortunately, we still have the Second Amendment, so I have an alternative. [Or I would have an alternative if I were not such a dedicated member of the FR Boating Club.]
Or someone on drugs with a weapon, because it seems that many mass killers are either on or neglecting psychoactive drugs.