Wellington Menezes de Oliveira(1987-2011) was a brazilian mass murderer who killed 12 people and himself at Tasso da Silveira Municipal School, which is his previous school.

He had been a target for both verbal and physical bullying during his days there as he had a limp leg and described as 'strange'. He was once thrown into a garbage bin by students. Inevitably, rage and resentment began to build inside him, and till adulthood, and then when he could not take the psychological torture anymore, he snapped.

On the fateful day, Oliveira entered the school, by identifying as a former student and lying to the security guard that he was there to give a speech. Instead of giving a speech, Oliveira entered a classroom, and at first, he was very polite when he put his bag on a table. Then suddenly, things turned nasty. He took out his revolvers and began shooting everyone. Of the 12 dead, 10 were girls and one boy said that Oliveira only shot at boys to stun them while he tried his best to kill the girls. However, it may be due to the fact that the population of the class is predominately girls. Soon, the police arrived and Oliveira tried to shoot the cops but he did not hit any of them. Soon, he was shot in the abdomen and legs, and he fell down a staircase whereupon he fatally shot himself in the head.

Oliveira is also obsessed with Islam, perceiving it as the 'only correct religion'. He also refer the virginia tech shooter, Seung-Hui Cho, as a brother and an icon for those who are oppresed by the majority.

Survivors from the scene of the school where Eric Harris and Dylan Klebold commited their shooting spree created a poster for the Municipal school, stating their feelings. Also, on the day of the sandy hook elementary school shooting, the municipal school held a vigil for the children killed.

So remember, kids, don't bully your classmates as even if they do not snap now, the hate will reside with them till adulthood.

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Wellington aiming his gun in a fashion similar to seung-hui cho.
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Wellington de Oliveira on the CCTV.
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The dead body of Oliveira lies on the staircase.