STF Investigates Senator Weverton Rocha Over Alleged Interference in Maranhão Murder Inquiry
The Supreme Court of Federal Justice has launched an inquiry into whether Senator Weverton Rocha (PDT-MA) leveraged his political influence to obstruct a homicide investigation in Maranhão, according to judicial documents unsealed on Friday, the 14th. Handled under the oversight of Supreme Court Justice Flávio Dino, the probe points to a coordinated effort within the state’s power structures to shield individuals tied to the family of Maranhão Governor Carlos Brandão from accountability.
Unsealing the Files: A Web of Corruption and Obstructive Tactics
The unsealed decisions lay bare a criminal ecosystem operating within Maranhão, touching upon murder, corruption, public fund diversion, and obstruction of justice. Federal police investigators describe a concerted campaign to protect members of the Brandão family from the fallout of a 2022 homicide. The case centers on the murder of businessman João Bosco Sobrinho, an incident that initial state police reports framed as a result of a personal dispute before federal investigators uncovered deeper financial motives.
According to federal documents, the deadly encounter transpired during a meeting convened to divide kickbacks siphoned from public contracts. Among those allegedly present was Daniel Brandão, nephew of the governor and current president of the Maranhão Court of Accounts (TCE-MA). Investigators found that Daniel Brandão’s presence was omitted from early state-level police reports, while security camera footage documenting attendees disappeared during its transit between the local police precinct and the forensic institute.
Cellular Data and a Timely Phone Call to the Superior Tribunal de Justiça
Federal investigators zeroed in on Senator Weverton Rocha after data extracted from his personal mobile device revealed proximity to Superior Tribunal de Justiça Minister Humberto Martins. The data trail shows direct communications—including text messages, audio notes, and file sharing—spanning from January 25, 2023 through October 4, 2025. Federal Police assert that the senator routinely lobbied the minister, explicitly naming interested parties and requesting favors regarding specific judicial processes.
A focal point of the federal inquiry is a five-minute telephone conversation between Rocha and Justice Martins on June 2, 2025. On that exact date, Justice Martins issued an order transferring Gilbson Cutrim Soares Júnior—convicted for shooting João Bosco—to the Federal Penitentiary in Brasília. Investigators note that this was the last relevant movement of the process, which then remained paralyzed.
Investigators are actively probing whether financial compensation changed hands, testing the hypothesis that the senator received advantages to stall the judicial pressure bearing down on the governor’s relatives. While Minister Humberto Martins is not personally a target of the Supreme Court investigation, the nature of his interactions with the senator remains a central pillar of the federal obstruction case.
Coercion and Silence: Pressuring Witnesses in the Maranhão Network
Beyond judicial lobbying, the Federal Police dossier outlines measures taken to muzzle key witnesses. Authorities documented an effort to prevent convicted shooter Gilbson Cutrim Soares Júnior and his relatives from cooperating with investigators or securing a plea deal. Witnesses were allegedly oriented to lie in testimonies.
The probe also implicates a federal police agent, identified as Edvar Rodrigues, who allegedly leaked confidential investigative files to the suspects’ families while pressuring witnesses to maintain their silence. Additional testimonies gathered by investigators place former congressman Raimundo Cutrim at the center of witness tampering efforts. Documents indicate Cutrim was recorded instructing Gilbson’s father to lie and invent stories of financial hardship to mask cash payoffs delivered on behalf of Marcus Brandão.
As the Supreme Court continues peeling back the layers of this regional power network, the unsealing of Justice Dino’s decisions signals a widening net for public officials and political intermediaries alike. Federal investigators maintain that the inquiry will proceed independently of political office, scrutinizing every point where executive influence intersected with the administration of justice.
What does this high-level judicial scrutiny mean for the future of political accountability in regional state governments? Share your thoughts below.
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