María Marta García Belsunce — Murder in a Gated Community

The Case

The María Marta García Belsunce case is one of Argentina's most notorious criminal proceedings — a homicide that took more than two decades, two separate trials, a wrongful conviction, and a final appellate judgment to resolve. At its center is the shooting death of a 50-year-old sociologist inside a wealthy gated community, an initial cover-up that delayed justice for years, and the eventual conviction in 2024 of a former neighbor who had lived just streets away from the victim.

The Crime

On the evening of 27 October 2002, María Marta García Belsunce was found dead at her home inside the Carmel country club, an exclusive gated community in Pilar, Buenos Aires Province. In the immediate aftermath, those present — including family members — described her death to authorities as a domestic accident, suggesting she had slipped and struck her head. She was buried without a thorough forensic examination.

Within days, however, suspicions mounted. A second autopsy was ordered, and its findings were shocking: María Marta had not died from a fall. She had been shot six times in the head with a .32-caliber revolver. Five of the bullets had penetrated her skull; a sixth had ricocheted. The staged accident narrative collapsed entirely, and what had been treated as a tragic mishap was reclassified as a premeditated murder.

According to what courts would later determine, the killer entered the property with the dual intent of robbery and murder. The Buenos Aires Times reported that the court found Pachelo had gone to the home to steal and to kill García Belsunce — a conclusion supported by forensic and circumstantial evidence presented over years of proceedings.

The Victim

María Marta García Belsunce was born on 24 April 1952 and was 50 years old at the time of her death. A trained sociologist, she moved in the upper social circles of Buenos Aires and was a resident of the Carmel gated community along with her husband, Carlos Carrascosa. Her social standing, her address in a supposedly secure private enclave, and the apparent attempt to disguise her murder as an accident all combined to make her case an immediate flashpoint for public debate about class, justice, and impunity in Argentina.

For her family and the Argentine public, María Marta became a symbol of a justice system that initially failed both the victim and the truth.

Investigation

The investigation that followed was, by any measure, one of the longest and most convoluted in Argentine legal history. Once the second autopsy confirmed homicide, prosecutors faced a fundamental problem: the crime scene had been contaminated, witnesses had given conflicting accounts, and the initial misclassification of the death had cost investigators critical early hours.

Suspicion initially fell on those closest to the victim. Her husband, Carlos Carrascosa, became the primary suspect and was eventually prosecuted. He was convicted of homicide — a verdict that seemed to close the case but that was subsequently overturned on appeal. Carrascosa's legal saga mirrored the broader chaos of the investigation: years of reversals and contradictions that kept the case in the headlines and left the public deeply uncertain about who had actually pulled the trigger.

Meanwhile, investigators and journalists began focusing on Nicolás Pachelo, a former neighbor who had lived in the Carmel community. Pachelo had a known criminal background and had faced accusations in other robbery-related cases. Prosecutors assembled a body of evidence against him that they argued placed him at the scene and established a motive rooted in theft — Pachelo allegedly entered the García Belsunce home to rob it, encountered the victim, and shot her.

The case hinged not on a single dramatic breakthrough but on the painstaking accumulation of forensic detail, witness testimony, and circumstantial evidence built up across multiple proceedings over more than two decades.

Trial and Verdict

By 2022, the legal focus had firmly shifted to Pachelo. A retrial commenced, examining the evidence against him in detail. At one stage he had been acquitted, adding yet another procedural reversal to a case already defined by them. But prosecutors pressed forward, and in March 2024 a Buenos Aires Province appellate court delivered its final judgment.

Nicolás Pachelo was found guilty of homicidio triplemente agravado — aggravated homicide in its most serious form — as well as related robbery charges. The court sentenced him to life imprisonment (prisión perpetua). CNN en Español and El País both reported the conviction, with El País describing it as the legal conclusion to "the first high-profile murder of the century in Argentina."

The verdict formally closed more than 21 years of legal proceedings and finally answered — at least in the eyes of the Argentine judiciary — the question that had haunted the country since October 2002.

It is important to note the human cost of the investigation's failures: Carlos Carrascosa spent years under conviction for a crime the courts ultimately determined he did not commit. His case stands as a cautionary illustration of how a mishandled crime scene and early institutional failures can cascade into serious miscarriages of justice. Wrongful Convictions in Latin America and Carlos Carrascosa Case are directly relevant to understanding the broader context.

Today

With Pachelo's life sentence now in place, the García Belsunce case is legally resolved. Yet its cultural and social resonance in Argentina shows no sign of fading. The case is frequently cited in discussions about access to justice, the reliability of forensic processes, and the ability of wealth and social status to distort early criminal investigations.

The Netflix documentary "Carmel: Who Killed Maria Marta?" (2020) introduced the case to a global audience before the final verdict was reached, and it remains widely viewed. Books, podcasts, and long-form journalism in Argentina have returned to the case repeatedly over the years.

For many Argentines, the García Belsunce case belongs in the same conversation as other landmark national criminal proceedings — including The Nora Dalmasso Case — that exposed structural weaknesses in the country's investigative and judicial institutions. It also draws natural comparisons to international cases in which gated or private communities became the setting for crimes that authorities struggled to prosecute, including O.J. Simpson Case.

María Marta García Belsunce was shot to death in what should have been the safest place she knew. It took Argentina's justice system more than two decades to confirm who fired the gun.