Supreme Court Upholds 13-Year Sentence for Officer in Sibling’s Shooting
The Supreme Court of Justice of the Nation has upheld a 13-year prison sentence for police sergeant Silvia Alejandra Rosignoli, who murdered her half-sister, Yolanda Monzon, during a violent argument in their Buenos Aires apartment. The tragic incident occurred in the early hours of June 27, 2019.
Incident Details
The events unfolded in an apartment located at 1000 Pueyrredón Avenue. Investigations revealed that Rosignoli and Monzon had a pre-existing conflict that culminated in a physical altercation. During this confrontation, Rosignoli fired a Bersa pistol, fatally striking Monzon in the eye.
Despite the evidence, Rosignoli has consistently maintained that the shooting was accidental. However, her claim was dismissed during the various judicial hearings.
Judicial Proceedings
Initially convicted in 2021 by the Oral Criminal and Correctional Court No. 8 for aggravated homicide, Rosignoli’s legal team argued that the charge should be reconsidered as reckless homicide. This plea was dismissed by the National Chamber of Criminal Cassation, which conducted a thorough review based on ballistics reports and the circumstances surrounding the incident.
Supreme Court Ruling
On June 18, 2026, the Supreme Court, led by judges Horacio Rosatti, Carlos Rosenkrantz, and Ricardo Lorenzetti, ruled the appeal inadmissible. The court affirmed that all judicial levels had found clear intent to kill, rejecting the defense’s argument that the shooting was not premeditated. This decision resulted in the finalization of Rosignoli’s 13-year sentence without further avenues for appeal.
Context of the Crime
At the time of the incident, both sisters had been consuming alcohol. Rosignoli reportedly showcased a recently acquired firearm. During their interaction, the gun went off, resulting in Monzon’s immediate death—she did not receive medical attention before succumbing to her injuries.
Conclusion
This case highlights the severe consequences of domestic disputes, particularly when weapons are involved. Expert testimonies, including ballistic analysis, played a crucial role in establishing the intentional nature of the shooting, thus solidifying Rosignoli’s conviction for aggravated homicide. She remains incarcerated, facing the repercussions of her actions in a tragic culmination of familial discord.