The nursing technician Marcos Vinícius Silva Barbosa de Araújoaged 24, the main suspect of murdering at least three patients in UTI (Intensive Care Unit) from a private hospital in Taguatinga, had a second job in another health unit in Taguatinga. Federal District.
According to information from PCDF (Civil Police of the Federal District)the professional continued working normally at the other hospital even after being fired by the Anchieta Hospitalwhere deaths occurred between November and December 2025.
According to researchers at Operation Anubisthe technician had two jobs simultaneously. After Anchieta Hospital identified irregularities in three deaths and established an internal analysis committee, the three technicians involved were fired from the institution.
However, as there had not been, at that point, a court order suspending his professional practice or arrest, Marcos Vinícius remained active in his second job until the start of the police operation.
The police now intend to expand the survey to all hospitals where the technician has worked for the last five years. The objective is to verify whether there were deaths with characteristics similar to those of the confirmed victims: the teacher Miranilde Pereira da Silva (75 years old), public servant João Clemente Pereira (63 years old) and the postman Marcos Moreira (33 years old).
Modus operandi and concealment
Investigations indicate that Marcos Vinícius used a doctor’s account to access the hospital system and prescribe lethal doses of medicines or inappropriate substances.
He prepared the injections and hid them in his coat to apply them to the beds without being noticed by the team. In one of the situations, the suspect allegedly injected disinfectant more than ten times in a 75-year-old woman after she suffered cardiac arrest.
To cover up his actions and avoid suspicion, the technician carried out cardiac massage maneuvers on victims when they collapsed, simulating legitimate attempts at resuscitation in front of other colleagues.
As he acted, the techniques Amanda Rodrigues de Sousa e Marcela Camilly Alves da Silva They monitored the door to prevent other professionals from entering.
Ethical and legal developments
O Regional Nursing Council of the Federal District (Coren-DF) informed that it is following the case and requested access to the police investigation and complete data on those involved.
The body highlighted that, if the evidence is proven, professionals may suffer a precautionary suspension of exercising the profession.
The three suspects confessed to their actions when confronted with images of the security cameras installed in ICU beds. They respond for triple homicide and remain at the disposal of the Court.
The police are awaiting expert reports on seized cell phones and computers to determine the exact motivation for the crimes.
