@MontereyJack,
School shootings don't equate to someone entering a school for the express purpose of killing as many kids as possible. From 1840 to last February, there have been 533 shootings on school property. Of those shootings, seven of them actually met the criteria for being an instance of someone deliberately out to kill as many people as possible. In other words, that kind of shooing is a rare event which is being used to justify banning guns.
You want to ban all guns?
Here is list of the school shootings for the last 20 years.
Buell Elementary School in 2000: Six year old shoots female classmate. Before shooting her, he said he didn't like her. She had rebuffed him the day before when he tried to kiss her.
Beach High School in 2000: Shooting was outside of a school, and neither the shooter nor the two victims attended the school.
Lake Worth Florida in 2000: On last day of school, shooter was sent home for throwing water balloon. Returned with handgun and shot teacher who sent him home.
Lake Clifton Eastern High School: 2001: Seventeen year old student shot with handgun while standing next to flagpole. It was a drive-by shooting.
Santana High School in 2001: Bullied shooter kills two students.
Lew Wallace High School in 2001: seventeen year old shooter kills one student. Police chief said it was a one on one shooting.
John McDonogh High School in 2003: Student shot by two men. Shooting was the result of a vendetta.
Red Lion Junior High in 2003: Student shoots junior high school principal and then kills himself.
Rocori High Schools in 2003: Student shoots two classmates because one victim had bullied him about his acne. The other victim was shot accidentally. The shooter then emptied the bullets from his gun and dropped it to the floor.
Campbell County High School in 2005: Student kills principal and two principal assistants with handgun.
Essex Elementary School in 2006: A 27 year old man shoots a teacher in revenge for an earlier incident.
Platte Canyon High School in 2006: A 53 year old man kills a student and then kills himself.
Weston School in 2006: Student shoots principal with a handgun.
West Nickel Amish School in 2006: A man enters a one-room school house and shoots five students, and then kills himself.
Virginia Tech in 2007: A senior student kills 32 students with handguns.
Louisiana Tech College in 2008: Female student kills two female students and then kills herself.
Nothern Illinois University in 2008: Graduate student kills five students and then kills himself.
Dillard High School in 2008: Female student kills a female student because of unrequited love.
Discovery Middle School in 2010: Student kills another student.
AL College Campus in 2010: Biology professor kills 3 people after being denied tenure.
Ohio State University in 2010: Forty-eight year old building services manager kills other manager and then kills himself.
Millard South High School in 2011: Student kills assistant principal and then kills himself.
Worthing High School in 2011: One student shot outside school. Police believe it to be gang-related.
San Jose State University in 2011: Three people killed in a double murder/suicide in a garage area.
Virginia Tech Parking Lot in 2011: Shooter kills police officer at traffic stop in school parking lot, and then kills himself.
Chardon High School in 2012: Student kills 3 students.
Episcopal High School in 2012: Fired teacher kills Head of School and then kills himself.
Christian School in 2012: Forty-three year old shooter kills seven.
Santa Monica College in 2013: Thirty year old man on shooting rampage chased by police to college campus where he killed one student.
Marysville Pilchuck High School in 2014: Student kills four classmates and then kills himself.
Umpqua Community College in 2015: Twenty-six year old kills 8 students and an assistant professor.
Rancho Tehama Reserve in 2017: Shooter choosing targets at random opened fire in a rural Northern California town Tuesday, killing four people at several sites and wounding others at an elementary school before police shot him dead.
Aztec High School Shooting in 2017: Twenty-one year old former student kills two students and then kills himself.