Mass School shootings begin after the implementation of gun free zone at Schools, beginning in the 90's.
With this, we created the Killing zone and herd the kid in. Unprotected.
"Other prominent school shootings in the United States:
• December 2012: Adam Lanza, 20, gunned down 20 children and six adults at Sandy Hook Elementary School in Newtown, Conn., before killing himself.
• February 2008: Shooter Steven Kazmierczak, 27, enters a lecture hall at Northern Illinois University, and kills five students and wounds 18 others before taking his own life.
• April 2007: Seung Hui Cho, a 23-year-old student, went on a shooting spree at Virginia Tech in Blacksburg, Va., killing 32 people, before killing himself. It was the deadliest school shooting in U.S. history.
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• October 2006: Milk truck driver Charles C. Roberts, 32, enters a one-room Amish schoolhouse in Nickel Mines, Pa., and isolates the female students in the classroom before methodically executing them. He kills five girls and wounds several more. Roberts then commits suicide.
• March 2005: Sixteen-year-old Jeff Weise killed his grandfather and a companion of his grandfather's, then headed to a high school on the Red Lake Indian Reservation in Minnesota. He killed five students, a teacher and a security guard before taking his own life.
• April 1999: Students Eric Harris, 18, and Dylan Klebold, 17, opened fire at Columbine High School in Littleton, Colo. They killed 12 students and one teacher and wounded more than 20 others before killing themselves in the school's library.
• August 1966: Charles Joseph Whitman, a former U.S. Marine, shot and killed 16 people from a university tower at the University of Texas in Austin before being shot by police."
https://www.floridatoday.com/story/...worst-school-shootings-u-s-history/338847002/
Automatic weapons have been available much longer than the Killing Zones.