Table of Contents

  1. Introduction
  2. Background
  3. Sister's Determination
  4. Investigation
  5. Flavia's Arrest
  6. Current Status
  7. Conclusion

When 27-year-old Isaias de Lira was abducted by impostor police officers and shot in the head seven times, his devastated sister suspected that the wicked killer was hiding in plain sight.

Overlooked by law enforcement, Allira Lira chose to take matters into her own hands and trained as a lawyer to seek justice for her brother.

A woman with long blonde hair and black-framed glasses smiles at the camera.Allira Lira became a lawyer to pursue justice for her brother, who was brutally murdered by four men. NINTCHDBPICT001034696699Flavia Alves Musto was convicted of aggravated homicide but fled before she could serve her sentence.Credit: Newsflash/NX

Now, 21 years later, she shares how her investigative work led to the arrest of the mastermind behind the murder.

Isaias was celebrating his birthday with friends when, in August 2005, he was kidnapped by four men who arrived in a car with obscured plates and claimed to be police officers in Paulista, Brazil.

They informed him he was being taken to a narcotics station.

Instead, they drove him to a deserted road where he was shot seven times in the head.

Isaias’ body was discovered the next day, initiating a seven-year investigation involving six different detectives.

His sister, 54-year-old businesswoman Allira, attempted to alert the police that her brother’s ex-wife, Flavia Alves de Lira, might have been involved, but her concerns were ignored.

When the investigation hit a dead end, she resolved to take action herself.

She enrolled in law school to comprehend the legal system and began writing a book about her brother’s case after police failed to act on crucial evidence she provided years earlier.

Allira told The Sun: “After the crime, I began receiving death threats.

“I was unable to work and faced many difficulties. I had to sell my possessions to make ends meet.

“Since I wanted to see justice served and couldn't, I enrolled in law school in 2011 to rebuild my life and seek justice.”

According to Allira, her brother and his ex-wife had a tumultuous marriage after marrying in 2001.

When Isaias discovered his wife had taken a lover and ended their relationship for good, Allira believes Flavia started plotting her revenge.

She initially attempted to have him imprisoned by accusing him of firing a weapon at her home.

However, when police found he was at a family gathering at that time, she took a different route—Allira claims she decided to have him killed.

Allira stated: “Flavia had already been threatening Isaias—witnesses saw both her and her lover making threats against him.

“But the police never took Flavia’s or her lover’s statements—even though I insisted that this was crucial to closing the investigation.”

She added: “Flavia and her lover were only questioned after the Public Prosecutor’s Office initiated its own investigation.

“And the lover admitted that they were having an affair.”

Investigators discovered that just days before the murder, Flavia was inquiring about the victim and whether he often visited the site where he was taken to be killed.

According to court documents, Flavia hired hitmen to carry out the murder of her ex-husband.

In 2012, significant developments in the case led to Flavia's arrest, and she was incarcerated until 2014 when she was released on bail.

In 2015, she stopped attending court hearings and was deemed a fugitive.

The police never took Flavia’s statement or her lover’s—even though I kept insisting that this was the key to closing the police investigation.

Allira Lira

In November 2019, 14 years after Isaias was murdered, Flavia was convicted of aggravated homicide and sentenced to 29 years and nine months.

However, by the time a verdict was reached, Flavia had fled the country and disappeared.

While Allira was completing the final chapter of her book, The Crime: from the Police Inquiry to the Jury Court, she discovered that Flavia had married an Italian man in 2015 and was residing in Tuscany.

After tracking down a marriage certificate, Allira found that Flavia had changed her last name to “Alves Musto,” allowing her to live undetected for years.

Allira relayed the information to prosecutors, leading to Flavia's arrest by Interpol agents in Volterra on September 13 last year.

“When I learned that she was married and living in Italy, I sent everything to the Public Prosecutor’s Office and demanded action,” Allira stated.

“Interpol quickly located and apprehended her.”

Extradition proceedings are currently underway to return Flavia to Brazil to serve her sentence.

The arduous quest for