I don’t know how long ago it was, but this has been happening since at least Charlie Whitman and the Texas Tower, but I read the worst school attack was a bomb that killed twenty something in the 1920s.
9 months ago, Cruz commented on a YouTube documentary on the Texas Tower Shooting, writing, “I’m going to do the same.” There are screen shots of this available.
Cruz premeditated this St.V-day massacre for a very long time. This was his true interest in enrolling in ROTC - obtaining free convenient access to marksmanship training.