Some people using guns to defend themselves against who they believe are the harbingers of this authoritarian State is 2nd amendment working as intended. Not a "tragic but necessary sacrifice" as some will put school shootings, but actually what right to bear arms is supposed to be about.
And it's immaterial if you ultimately disagree to whether this administration is authoritarian, but these things will keep happening as long as enough people believe that to be the case. It's a feature, not a bug.