Nine are killed in gun battles between paramilitary forces and drug gangs in Rio de Janeiro favelas.
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)"]
Brazilian Police say they have identified and are searching for four of the more than 30 men suspected in last Saturday's gang rape of a 16-year-old girl in Rio de Janeiro. The assault came to light after several men posted about the attack online.
Three men are arrested for allegedly raping and robbing a foreign tourist on a minibus in Rio de Janeiro, Brazil, amid concerns about security before the country hosts 2014 FIFA World Cup and the 2016 Summer Olympics.
The UN Conference on Sustainable Development begins in Rio de Janeiro, launching a new round of debate on the future habitability of Earth, its resources and people, 20 years after the first Earth Summit.