Guilherme Taucci Monteiro

The shooters were Guilherme Taucci Monteiro (July 5, 2001 – March 13, 2019) and Luiz Henrique de Castro (March 16, 1993 – March 13, 2019).

Monteiro lived with his grandparents as his mother had addiction problems.

Both attackers had attended the targeted school.

Monteiro allegedly dropped out due to having been bullied the previous year.

The attackers had been close friends since childhood.

They had planned the attack for a year and, inspired by the Columbine High School massacre, they hoped the attack would draw more attention than the Columbine massacre.

According to some reports, both perpetrators were influenced by Dogolachan, a far-right imageboard known for inciting terrorism and violence where they had been asking for weapons and support.

On this imageboard Luiz was known as luhkrcher666 and Guilherme as 1guY-55chaN.

In a statement from Monteiro's mother, Monteiro had reportedly been bullied because of his acne.

She also stated that he had been harassed by a fellow pupil.

Castro was described by his father as "weak-minded and would do what the other people wanted".

A third suspect, not directly involved in the attack, stated that the perpetrators also intended to carry out rapes.

The perpetrators might have been influenced by Elephant, a movie about a school shooting in which a murder-suicide between the shooters ends the movie.

Two victims were school staff members.

The first victim to be shot was Marilena Ferreira Vieira Umezu, a pedagogical coordinator.

Five high school students were killed, four of whom died at the site and one en route to a hospital.

The attack also left eleven students wounded who were taken to nearby hospitals.

Two of these victims, who presented a more serious clinical condition, were transferred to Hospital das Clínicas in São Paulo.

Many authorities, politicians, artists and other people expressed their condolences and commented on the tragedy.

João Doria, governor of São Paulo, canceled his routine activities and flew to Suzano in a helicopter along with Rossieli Soares, the state's Secretary of Education; Colonel Salles, military police commander; and army general João Camilo Pires de Campos.

Doria lamented the attack and decreed 3 days of mourning in the state.

The attack was the second major and 2nd deadliest school shooting in Brazil, after the Realengo massacre in 2011.

Earlier in the day, the gunmen shot three times and killed Monteiro's uncle, Jorge Antônio Moraes, in a nearby car shop.

The two attackers drove to the school in a white Chevrolet Onix that Castro had legally rented at Localiza.

School cameras recorded the attackers entering the school at around 9:40 a.m. local time, one after the other, with a delay of around 10 seconds.

Monteiro entered the building first, hiding his face from students while retrieving a hidden gun.

He then turned around and began shooting at two school staff members as well as several students at a distance of approximately 3 ft in front of him, before entering the main patio in search of more potential victims.

He disappeared from camera and then moved on to the institution's linguistics center.

By this time, Castro appeared on camera entering the building in a hurry while holding several weapons, including a bow which he eventually left on the floor.

He approached the corpses lying on the ground and struck them with a hatchet.

Fleeing students started to run from the patio towards the school entrance hall.

On the way, they encountered Castro, who was still in the entrance hall.

Other students who had hidden themselves when they first heard gunshots were able to avoid being shot.

Five students between 15 and 17 years old and two school staff members were killed.

The school was locked down by police, who searched it and found a bow and arrow, a crossbow, possible Molotov cocktails and a wired bag.

A bomb squad was dispatched to the scene and found that it was a fake explosive.

The Suzano Massacre, also known as the Suzano school massacre, was a school shooting that took place on March 13, 2019, at the Professor Raul Brasil State School in the Brazilian municipality of Suzano, São Paulo State.

The perpetrators, 17-year-old Guilherme Taucci Monteiro and 25-year-old Luiz Henrique de Castro, both former students at the school, killed five students and two school employees.

Before the attack, in a car shop near the school, the pair also killed Monteiro's uncle.

After the shooting, Monteiro killed his partner and then committed suicide.