The Supreme Court of Justice of the Nation has upheld a 13-year prison sentence<\/strong> for police sergeant Silvia Alejandra Rosignoli<\/strong>, who murdered her half-sister, Yolanda Monzon<\/strong>, during a violent argument in their Buenos Aires apartment. The tragic incident occurred in the early hours of June 27, 2019<\/strong>.<\/p>\n The events unfolded in an apartment located at 1000 Pueyrred\u00f3n Avenue<\/strong>. Investigations revealed that Rosignoli and Monzon had a pre-existing conflict<\/strong> that culminated in a physical altercation. During this confrontation, Rosignoli fired a Bersa pistol<\/strong>, fatally striking Monzon in the eye.<\/p>\n Despite the evidence, Rosignoli has consistently maintained that the shooting was accidental<\/strong>. However, her claim was dismissed during the various judicial hearings.<\/p>\n Initially convicted in 2021<\/strong> by the Oral Criminal and Correctional Court No. 8 for aggravated homicide<\/strong>, Rosignoli’s legal team argued that the charge should be reconsidered as reckless homicide<\/strong>. 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.<\/p>\n On June 18, 2026<\/strong>, the Supreme Court, led by judges Horacio Rosatti<\/strong>, Carlos Rosenkrantz<\/strong>, and Ricardo Lorenzetti<\/strong>, ruled the appeal inadmissible. The court affirmed that all judicial levels had found clear intent to kill<\/strong>, rejecting the defense’s argument that the shooting was not premeditated. This decision resulted in the finalization of Rosignoli’s 13-year sentence<\/strong> without further avenues for appeal.<\/p>\n 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\u2014she did not receive medical attention before succumbing to her injuries.<\/p>\n 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<\/strong> of the shooting, thus solidifying Rosignoli’s conviction for aggravated homicide<\/strong>. She remains incarcerated, facing the repercussions of her actions in a tragic culmination of familial discord.<\/p>\nIncident Details<\/h3>\n
Judicial Proceedings<\/h3>\n
Supreme Court Ruling<\/h3>\n
Context of the Crime<\/h3>\n
Conclusion<\/h3>\n