
One of Brazil's top criminal leaders was locked up in a 6-square-meter (65-square-foot) isolation cell at a maximum security prison to avoid being killed by rivals, authorities said Tuesday.
Luiz Antônio da Silva Braga, the boss of the largest militia group in the state of Rio de Janeiro, surrendered to federal police on Sunday. The criminal leader better known as Zinho was sent to the Bangu 1 prison, where drug traffickers and militia men are also held, Rio state's public security secretary Victor Santos said.