# Femicide cases in Argentina – suspect detained

> Live situation record from CLSTR: https://clstr.news/situations/20260730-femicide-cases-in-argentina
> Updated: 2026-07-29T20:16:29.000Z. Sources: 10. Developments: 2.

On 11 July 2026 a woman was detained in Esquel, Chubut after being accused of killing her partner; details were not provided.

On 30 July 2026 health worker Gemma Álvarez was murdered while riding her motorcycle on the Costanera avenue in Chimbas, San Juan Province. An autopsy confirmed she died from 31 stab wounds inflicted with a knife. She had filed a gender‑based restraining order against her former partner, Matías Exequiel Marín, a day earlier. Police say Marín used a white Volkswagen Gol Trend to block her, pursued her and attacked her. After the killing he fled, attempted to cut his own wrists, and was captured in a house in Villa Obrera. He received medical treatment for the self‑inflicted injuries and was presented to a judge with his hands bandaged. The operation involved drones, raids and a warning shot, which did not cause any fatalities.

A photograph of Álvarez holding a “Ni Una Menos” sign spread on social media, becoming a symbol of the fight against gender‑based violence. The case is being handled by the Special Crimes Prosecutor's Office and San Juan police, and her funeral drew community calls for justice.

## Claims

- Matías Exequiel Marín was identified as the main suspect in the femicide of Gemma Giselle Álvarez. (corroborated by 5 sources)
- The suspect used a Volkswagen Gol Trend vehicle to intercept the victim. (corroborated by 5 sources)
- After fleeing, the suspect was captured in Villa Obrera, where he attempted to cut his wrists. (corroborated by 5 sources)
- The suspect is now in police custody and will be presented to the justice system. (corroborated by 4 sources)
- Gemma Álvarez was killed on a Thursday morning on the Costanera in Chimbas, San Juan Province. (corroborated by 4 sources)
- The victim suffered 31 stab wounds; autopsy confirmed no gunshot wounds. (corroborated by 3 sources)
- An ambulance was called and the suspect received medical attention after his self‑injury. (corroborated by 3 sources)
- A police officer fired a warning shot during the operation, which did not cause the victim’s death. (corroborated by 3 sources)

## Timeline

### 2026-07-29: Gemma Álvarez femicide case advances in San Juan, Argentina

Gemma Álvarez was stabbed to death in Chimbas, Argentina; ex‑partner Matías Marín was captured after self‑harm, amid a police operation and a prior restraining order.

10 sources. https://clstr.news/cluster/gemma-lvarez-femicide-in-chimbas-prompts-manhunt-and-public-outcry

### 2026-07-11: Woman detained for killing partner in Esquel, Chubut

A woman was detained in Esquel, Chubut, as the main suspect in the aggravated homicide of partner Nelson Walter Ayilef Millapán, stabbed in the neck early Friday; she has prior criminal allegations and will be‑

4 sources. https://clstr.news/cluster/woman-detained-for-killing-partner-in-esquel-chubut

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Cite as: Femicide cases in Argentina – suspect detained. CLSTR, https://clstr.news/situations/20260730-femicide-cases-in-argentina