At around 13:30 BRT (16:30 GMT), prison director José Ismael Pedrosa was warned that a fight had started between two groups in cell block 9 after a game of football.

[4] Around 14:15 BRT (17:15 GMT), the prison director, Dr José Ismael Pedrosa, informed the local military police about the uprising.

Colonel Ubiratan Guimarães of the PMESP mobilized the Shock Police battalions, and after a phone call with the Secretary of Public Security, Pedro Franco de Campos, gave the order for an incursion of 341[5] policemen into the prison complex.

[2][8] In a documentary by police content creator Elias Junior, ROTA officers who took part in the 2nd floor massacre defended their actions by stating that riot police units were unable to advance due to firearms being employed by the rebellious inmates, and that prisoners had attempted to infect the policemen with HIV using bodily fluids.

[9][10] In a 2013 testimony, former ROTA Colonel Valter Alves Mendonça described coming across a decapitated body, having fired his weapon after feeling impacts on his ballistic shield, and that prisoners armed with blades got into hand-to-hand combat with his unit.

[14] In 2013, hundreds of people attended a multi-faith vigil in São Paulo in memoriam of those killed in the massacre.

[16][5][17] In 2002, he was elected a state deputy for São Paulo as a member of the Brazilian Labour Party with more than 50,000 votes, running with the campaign number 14.111 in reference to the 111 deaths.

One of Brazil's most notorious gangs, the Primeiro Comando da Capital (PCC), is said to have formed in 1993 as a response to the event.

The massacre also received attention from the BBC with several articles in the last several years dealing with the vigils and the trials.

[27] Although the UN urged Brazil to bring justice to those most affected by the slaughter in September 2016, the court declared the trial on Carandiru massacre null.