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Authorities Advance Probes Into 2025’s Most Violent Cases as New Raids and Arrests Mark Early 2026

A reported decline in killings contrasts with high-profile attacks still driving public concern.

Overview

  • Mexico reported fewer homicides in 2025, even as investigations continue into the livestreamed killing of influencer Valeria Márquez, the assassination of Uruapan mayor Carlos Manzo, the murders of two Colombian musicians, and the Zapopan attack that killed businessman Alberto Prieto.
  • The State of Mexico prosecutor’s office detained 16 suspects over the killings of Bayron “B‑King” Sánchez and Jorge Luis “DJ Regio Clown” Herrera, with inquiries pointing to a dispute over the sale of the drugs “Tusi” and “Coco Chanel.”
  • In the Uruapan mayor’s case, authorities identified a 17-year-old as the alleged gunman and named two suspected intellectual authors with reported CJNG ties, as additional investigative steps proceed.
  • In Argentina’s Santa Fe province, homicide detectives say they have strong leads on five killings from December 31, with the Special Homicide Unit directing the cases.
  • Early‑January operations in Argentina included the La Plata arrest of the alleged “Los Berracos” burglary crew with tool seizures, the formal detention of a 19‑year‑old in a child‑abuse case that sparked neighborhood unrest, and the arrest of a 23‑year‑old in Villa María over an alleged femicide.