I cannot remember a case where our police have ever needed to go in to rescue school children being murdered by a gunman. It isn't part of our culture to enter a school, church or office building with guns blazing.
Drive by shootings by criminal gangs are what our police have to deal with. Not sure what kind of guns they use though.
Bath, MI School Mass Murder - 1927
The Bath Consolidated School just outside East Lansing, Mich., was holding final exams, but before the morning bell rang on May 18, 1927, children ran and played outside. Peals of laughter could be heard.
“Little did their young minds, as the rest of ours, fancy their destiny was at hand … perhaps in half an hour they would rest in eternity with their playmates,” a 15-year-old student name Martha Hintz later recalled in an essay.
Later that morning, once students and teachers had settled into their classrooms, an explosion brought walls and ceilings down. The school had been dynamited by an angry school board member, but no one knew that yet. The only thing certain was that children and educators were hurt and others were dead or dying.
“We began to run screaming and crying in the same breath, some running for the door while others made for the windows,” Hintz, a ninth-grader, wrote in an essay published in a book titled, “The Bath School Disaster.” Once outside, she recalled: “From every direction, we could see people coming, some running at their utmost speed, and others driving machines, both hoping and praying that their children or friends were not among the dead.”
After each school killing, there is an urge to capture its magnitude in superlatives. That happened after
the 2007 shooting at Virginia Tech, in which senior Seung Hui Cho killed 32 people and then himself. Media outlets at the time — and as recently as 2015 — described the event as the country’s “worst school massacre.” One Virginia newspaper ran a headline with the phrase: “Nation’s Worst Rampage.”
But they were wrong. As horrific and devastating as that April 16, 2007, day proved, it was not the worst mass killing on a school campus.
That distinction belongs to the mostly forgotten, harrowing explosion at Bath Consolidated School 95 years ago. That day, local farmer Andrew Kehoe, angry about taxes used to fund the school, killed his wife and then blew up the building before doing the same to his car as he sat inside it. In total, 45 people were killed, among them 38 children.
https://www.washingtonpost.com/history/2022/05/24/bath-consolidated-school-massacre-uvalde/