( CNN ) -- Ten military police officers in Brazil are accused of torturing and killing a 47-year-old brick layer -- and then hiding his corpse . The incident was allegedly committed by members of Brazil 's Pacifying Police Unit , a team assembled to address crime before the 2014 World Cup and the 2016 Olympic Games comes to Brazil . The incident dates back to July 14 when Amarildo de Souza was taken to police headquarters in Rio de Janeiro by officers , state broadcaster Agencia Brazil reported . Souza was never seen again . Police said that Souza had been brought in for questioning and was released . But a prosecutor said there was no evidence from security camera footage that Souza ever left police headquarters , Agencia Brazil reported . There was evidence , the state news agency reported , that two security cameras were turned off or burned . Investigators believe Souza was tortured , killed and his body was concealed somewhere . Prosecutor Homero de Freitas plans to file a complaint against all 10 officers , Agencia Brazil reported . One of the 10 accused is a unit commander for the new Pacifying Police Unit . The military police team was created some years ago to clear the Rio de Janeiro slum , called a favela in Portuguese , of drug traffickers . The Pacifying Police Units are tasked with living and working in the favelas they protect . The unit has grown in importance in recent years as the upcoming World Cup and Olympics puts Brazil in the spotlight . CNN 's Jessica King contributed to this report .
The incident comes as Brazil addresses crime before World Cup and the Olympics . Police said they were investigating whether a man was responsible for the attack. Investigators believe the victim was tortured .