# Cuiabá jury sentences three men for Zampieri murder

> Live situation record from CLSTR: https://clstr.news/situations/roberto-zampieri-murder-trial-in-cuiab
> Updated: 2026-10-01T14:11:21.000Z. Sources: 36. Developments: 3.

A jury in Cuiabá has convicted the three men involved in the December 2023 murder of lawyer Roberto Zampieri, sentencing them to a combined total of over 68 years in prison.

The defendants were found guilty of triple qualified homicide involving base motives, the use of a restricted firearm, and methods that prevented the victim from defending himself. Hedilerson Fialho Martins Barbosa received the longest sentence of 25 years. Antônio Gomes da Silva and Etevaldo Luiz Caçadini de Vargas were each sentenced to 21 years, 10 months, and 15 days. The court applied mitigating factors for da Silva due to his spontaneous confession and for Caçadini due to his age.

The three-day trial concluded after a review of more than 55,000 pages of evidence. The prosecution, led by the Mato Grosso Public Ministry, successfully detailed the execution of Zampieri as he exited his law office.

## Claims

- Antônio Gomes da Silva is accused of being the individual who fired the shots that killed Roberto Zampieri. (corroborated by 5 sources)
- Hedilerson Fialho Martins Barbosa is accused of participating in the criminal plan and providing the weapon used. (corroborated by 5 sources)
- Etevaldo Luiz Caçadini de Vargas is accused of being part of the criminal enterprise. (corroborated by 5 sources)
- The first day of the trial included testimony from six witnesses, including Civil and Federal Police delegates. (corroborated by 5 sources)
- Antônio Gomes da Silva claims he acted alone out of indignation toward corruption. (single source)
- Antônio Gomes da Silva claimed he traveled from Minas Gerais to Mato Grosso to investigate the lawyer. (single source)

## Timeline

### 2026-10-01: Brazil courts issue major sentences in various homicide and abuse cases

Multiple criminal trials in Brazil have resulted in significant convictions, including long sentences for the murders of lawyers in Goiânia and Cuiabá, and cases of femicide and sexual abuse.

27 sources. https://clstr.news/cluster/cuiab-jury-trial-for-lawyers-murder-enters-debate-phase

### 2026-09-29: Cuiabá jury trial continues in Roberto Zampieri homicide case

The jury trial for the murder of lawyer Roberto Zampieri in Cuiabá has moved to the interrogation phase, with the alleged shooter claiming he killed the victim to combat corruption.

11 sources. https://clstr.news/cluster/trial-begins-for-suspects-in-roberto-zampieri-murder-case

### 2026-09-27: Cuiabá jury trial resumes for Roberto Zampieri murder suspects

Three defendants accused of murdering lawyer Roberto Zampieri in Cuiabá face a new jury trial this Tuesday following a previous session that was interrupted by a juror's illness.

10 sources. https://clstr.news/cluster/brazil-supreme-court-restricts-unilateral-icms-tax-benefit-revocations

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Cite as: Cuiabá jury sentences three men for Zampieri murder. CLSTR, https://clstr.news/situations/roberto-zampieri-murder-trial-in-cuiab