Overview
- The killing took place at the shared home in Barrio La Chacarita on July 19 when 22‑year‑old Marcelo Joaquín Tula fatally attacked his 63‑year‑old mother, Norma Beatriz Tula.
- A joint report from the Cuerpo Interdisciplinario Forense says Tula suffered an acute psychotic break and a delusion in which he did not recognize his mother and believed he was attacking 'la muerte'.
- The CIF concluded there was an alteration that abolished his capacity to comprehend the criminality of the act, but the experts cannot declare legal non‑responsibility and a judge must make the formal ruling on imputability if prosecutors or defense request it.
- Investigators documented extreme violence at the scene, including dozens of stab wounds and post‑attack mutilations, and reported that after the attack the accused cleaned up, left the house, visited the Catedral Basílica and sent a WhatsApp message.
- A personal letter from the victim published with the report has given family context to the case and the pending judicial decision will determine whether the matter moves toward criminal trial, compulsory psychiatric care, or another legal outcome.