No, not "increasingly this is a reality for children."
There are over 150,000 schools in the USA.
https://nces.ed.gov/fastfacts/display.asp?id=84
How many school shootings happen each year?
The media hype of every such incident blows the situation out of all proportion to "reality."
IMO the fact we make such actors notorious encourages them to act out in such ways...giving them exactly what they desire.
They seek notoriety, to make them seem consequential via infamy and their half-hour of fame in an otherwise wasted life.
They get a "twofer" by these acts; revenge for alleged slights, and to become the focus of national attention for as long as their trial lasts...or until another seeker steals the limelight.
Meanwhile, you heighten the fear in order to push an agenda, using the emotional appeal of "what about the children!" ignoring the fact Millions upon Millions of people own guns and never use them for bad purposes.