The killings known in Brazil as the “Meninos Emasculados do Maranhão” led to one of the country’s most extensive serial-murder prosecutions. Francisco das Chagas Rodrigues de Brito received multiple convictions totaling hundreds of years.

For years, boys disappeared and were killed in Maranhão, with cases also discussed in connection with similar crimes in Pará. The investigation eventually focused on mechanic Francisco das Chagas Rodrigues de Brito. Searches, forensic work and subsequent prosecutions tied him to numerous murders in Maranhão, producing a series of convictions and one of Brazil’s longest cumulative sentence records.
A long-running pattern develops in Maranhão, with related suspicions in Pará.
Forensic discoveries and questioning transform the case.
Brito is convicted in multiple homicide cases.
The cumulative penalties continue to grow.
The investigation becomes a reference point for criminal forensics in Maranhão.
The murders occurred over more than a decade and involved children from vulnerable communities. The length of the series and the existence of similar cases elsewhere complicated efforts to determine which crimes could be proven against which suspect.
Authorities found physical evidence connected to missing boys during the investigation of Brito. The Maranhão public-security system later highlighted the case as an example of the importance of forensic science in solving complex crimes.
Brito faced separate proceedings for different victims. The Maranhão Public Prosecutor documented repeated convictions, with cumulative penalties rising into the hundreds of years.
Brito lived in Pará during a period when boys were killed in the Altamira region, and investigators considered links between the series. The legal history there is complicated and should not be collapsed into the Maranhão convictions as though every attributed death had the same evidentiary status.
Media accounts often cite 42 deaths across Maranhão and Pará. The strongest formulation is that authorities investigated dozens of killings and that Brito was convicted in multiple Maranhão cases. A total attributed count should not be presented as though every case produced an individual final verdict.
Crime by Region separates allegations, confessions, police theories and final court findings. When sources disagree, this file uses cautious wording rather than presenting the most sensational version as established fact.
Last reviewed: August 19, 2026