His first paragraph, quoted below is totally false.
Mass murder is NOT on the rise at all.
His opening pp.:
“For those of us who came of age in the 1970s, one of the most shocking aspects of the last three decades was the rise of mass public shootings: people who went into public places and murdered complete strangers. Such crimes had taken place before, such as the Texas Tower murders by Charles Whitman in 1966,1 but their rarity meant that they were shocking.”
So I repeat: His basic premise on which his article is based is totally false.
Reading the first paragraph is not the same as reading the full article. He is quite clear that there was an upswing (starting in the 70’s) and then a down swing both of which can be related to the emptying of mental hospitals followed by a prison building spree, high numbers of incarcerated mentally ill and a resulting decrease.
Read the entire article.