Brazilian politician and outspoken police critic Marielle Franco is killed along with her driver in a drive-by shooting in Rio de Janeiro.
A police officer, a civilian, and 16 suspected gang members are killed during an operation against organized crime in a favela in Rio de Janeiro, Brazil.
Anti-fascist protesters gather in the Brazilian cities of São Paulo, Rio de Janeiro and Belo Horizonte in response to police brutality and President Bolsonaro's defence of unconstitutional measures. A pro-government crowd forms in São Paulo, with police reporting neo-Nazi flags hung from a sound truck.
Two former military police officers are arrested in Brazil for the murders of Marielle Franco and her driver Anderson Gomes. One of the suspects was arrested at home, in a Rio de Janeiro gated community where President Jair Bolsonaro also resides. Franco was born in a Rio favela and became a politician and activist against violence in the slums, which are often controlled by paramilitary groups. Her assassination prompted widespread protests. [https:--www.theguardian.com-world-2019-mar-12-police-officers-arrested-murder-brazilian-politician-marielle-franco ("The Guardian)"]
An open letter from international politicians, activists, journalists, and academics demands an independent commission be formed to investigate the assassination of Brazilian human rights activist Marielle Franco and her driver.
At least two people are killed after an oceanfront stretch of an elevated bike lane in Rio de Janeiro, Brazil, collapses when it was hit by a strong wave. Two other people were rescued alive, while another may be missing. The bike lane was among the projects built in preparation for the 2016 Summer Olympics. No Olympic event will be held on the path.
Alleged Brazil serial killer, Sailson Jose das Gracas, confesses to 42 murders in Rio de Janeiro.
Tens of thousands of Roman Catholics greet Pope Francis in Rio de Janeiro, Brazil, during his first foreign trip as pontiff.
Brazilian police begin an operation in a shanty town in Rio de Janeiro to end a surge of violence; at least 30 people have been killed in recent days.
About 103 people are killed in flooding and mudslides in Rio de Janeiro state in Brazil. Of the total, thirty-three people died in the city of Rio de Janeiro, while 33 were killed in the neighbouring city of Niterói, 12 people dead in São Gonçalo, and one in Petrópolis.
About eighty tons of dead fish are discovered and removed in a lagoon in Rio de Janeiro, Brazil, likely due to localized ocean anoxia and algal blooms.