Overview

• Héctor Guerrero declared before Judge Ariel Lijo, acknowledged launching the 38 mm CN tear‑gas cartridge that struck Grillo’s head, denied intent to harm, and asserted he is innocent.
• Forensic reconstructions by the Policía de la Ciudad and guidance from weapon manuals in the case file indicate the launcher was used horizontally in an antiregulatory manner.
• Medical records in the proceedings note surgeries including bilateral cranial reconstruction, with Grillo now in neurological rehabilitation and showing a favorable evolution, according to his father.
• On a parallel track, Prefect Sebastián Emanuel Martínez was indagated over the Byrna TCR shot that cost Jonathan Navarro vision in his left eye and said he fulfilled his duty.
• Family members, colleagues and ARGRA held a photo exhibit and public class outside Comodoro Py during the hearings as prosecutors, including Eduardo Taiano, advance the probe.