Overview

• He faces counts of very serious injuries and abuse of weapons, aggravated by his status as a security‑force member, for the March 12 incident at Congress.
• The court froze ARS 203 million in assets, ordered periodic police check‑ins and a travel ban, and declined to impose pretrial detention.
• Investigators determined he fired at least six times and that a 38 mm round struck Pablo Grillo in the head while the photographer was crouched dozens of meters from the police line.
• Multi‑source imagery and ballistic reconstructions identified Guerrero as the shooter, aided by distinctive uniform color and a helmet marking.
• Medical experts reported exposed cranial fractures and brain injuries requiring multiple surgeries; Guerrero admitted firing but denied intent, as the judge assessed dolo eventual.