The article offers a conjecture, but other than that, it&#x27;s not too helpful, and focuses too much on one incident.<p>The Stanford libraries have a mass shooting tracker.[1] It&#x27;s not complete; it comes from what they could find with social media. They have an interactive map. Interestingly, some likely areas show few mass shootings.  Manhattan has zero.  New York City as a whole has two. (One was family related, another was someone shooting their supervisor, so they were ordinary motive-driven murders, not random targets) New York City is doing something right.<p>Looking at incidents on the map, it&#x27;s striking how few of the motive-less killings happened in major cities.  It&#x27;s more of a suburban problem.<p>[1] <a href="https:&#x2F;&#x2F;library.stanford.edu&#x2F;projects&#x2F;mass-shootings-america" rel="nofollow">https:&#x2F;&#x2F;library.stanford.edu&#x2F;projects&#x2F;mass-shootings-america</a>