Ang shot released Tuesday at Robb Elementary School in Uvalde, Texas. which ended in the least 16 dead, according to local police themselves, and dozens of injured, this is not a case isolatedand participate in the long list of other similar events, in schools and various educational institutions.

The Parkland massacre is one of the most recently remembered in that country and has characteristics similar to those in Texas. In that case that occurred on February 14, 2018, a former student killed 17 people at a high school in Florida.

Nikolas Cruz (19) was expelled from the institution for disciplinary reasons, he used a semi-automatic weapon which he legally purchased and left a balance of 17 dead (13 students) and 14 injured. The young man was arrested and is now awaiting a decision you can incur the death penalty.

That massacre activated a national student movement in favor of more restrictions on the purchase and possession of weapons, especially these types of rifles, similar to weapons of war.

One in Parkland was the second bloodiest school massacre in U.S. schools, surpassed only by Sandy Hook Elementary, in Newtown, Connecticut, in 2012: 21 children and 6 adults died there. The shooter was then killed.

So far, although there are suspected suspicions, there is no substantiated evidence that can provide indications of the motives that led Adam Lanza (20) to commit the massacre and why he used this school as his target of attack. In a report by the Connecticut Children’s Advocate Office in 2014, it described Lanza as a young man with deteriorating mental health who himself was fascinated by shootings.

The weapons Lanza used for the massacre were legally purchased by his mother, Nancy Lanza, whom he also killed at home before getting in the car and heading to school.

Earlier, on April 16, 2007, a 23-year-old student of Korean descent killed 32 people before committing suicide on the campus of Virginia Tech University in Blacksburg, Virginia. U.S. media recalled that case as “university Sept. 11.”

The country has moved. Then -president George Bush said he was “scared” while university president Charles Steger called it a “huge tragedy.”

On April 20, 1999, in Littleton (Colorado, west), one of the most memorable tragedies occurred, when two high school students opened fire on the school. columbine murder 12 students and a teacher and injured 24 other people. The two attackers committed suicide at the scene of the massacre.

That spring morning was the 110th anniversary of Adolf Hitler’s birth and the Columbine High School massacre in the U.S.-which was later found to be in honor of the Nazis-turned out to be the worst nightmare in a school. Columbine wasn’t the biggest massacre at the school, but it was one of the most memorable. So filmmaker Michael Moore reflects on the story in the documentary Bowling for Columbine.