A Hopeful Ending: Mariano Appeared Safe and Sound
On Thursday, September 3, 2026, the anguish that had gripped the family of Mariano Martínez came to an end. The 21-year-old Architecture student at the National University of La Plata (UNLP)—one of Argentina's most prestigious public universities, located in the city of La Plata, about 50 kilometers south of Buenos Aires—voluntarily presented himself at a police station in the city of Córdoba, Argentina's second-largest city and a major cultural hub, according to police sources and those close to the case.
Mariano was alone and showed no signs of violence, appearing to be in good physical health. Authorities are now coordinating his reunion with his parents, who awaited him with a mix of relief and emotion after five days of uncertainty.
Timeline of a Disappearance That Shook the Community
The case began on Monday, August 31, 2026, when Mariano left his home in Berazategui—a city in the southern part of Greater Buenos Aires—at 8:00 AM heading to the Faculty of Architecture at UNLP, where he was due to submit a practical assignment. However, according to his relatives, the young man felt unwell and decided to leave his models with a classmate and leave.
Security cameras and his SUBE card records (the contactless public transport card used in Buenos Aires) helped trace his steps: he was first seen in Punta Lara, in the Ensenada district; then he boarded a line 275 bus and later a Roca train bound for Constitución station in Buenos Aires City, where his trail went cold at 4:17 PM.
A detail that raised all alarms was a message Mariano sent to his brother with the password to his computer ("paintball"), which the family interpreted as a possible farewell signal.
The Sighting in Córdoba That Revived Hope
On Tuesday, September 1, an employee at the Sushi Board restaurant in the Cofico neighborhood of Córdoba recognized Mariano when he came in to drop off a resume. The young woman, identified as Sofía, noticed something odd: the resume had the name "Juliana Silva" crossed out and, below, handwritten, read "Martínez Mariano".
During that informal interview, Mariano said he was an architecture student, lived at his aunt's house, had no cellphone because it had broken, and even provided a fake email address. The resume included his photo and detailed that he was studying Architecture and Urbanism (2023-2026) and that he was a Master Builder, with two years of experience at a faculty copy shop and as a cashier/stock clerk at his father's grocery store.
Another witness, an employee at a bookstore in Córdoba, also recognized him when he made a photocopy of the same resume, which helped confirm that Mariano was in the central province.
Key Case Details
- Missing person: Mariano Martínez, 21, Architecture student (UNLP).
- Date of disappearance: Monday, August 31, 2026.
- Last trace: Constitución station (Buenos Aires City), 4:17 PM.
- Key sighting: Sushi Board restaurant, Córdoba, September 1.
- Resolution: Turned himself in at a police station, September 3.
A Relief for the Family and the Educational Community
The news of Mariano's appearance was met with enormous relief in Berazategui and at the Faculty of Architecture, where classmates and professors had organized a massive social media campaign to spread the word. The family, which had asked for help from police and the community, thanked everyone for their support and asked for respect for their privacy during this time of reunion.
While the reasons that led Mariano to travel to Córdoba and the reasons for his silence are not yet known, authorities indicated that there is no evidence that he was the victim of a crime. More details about his emotional state and the circumstances of his decision are expected in the coming days.
This case, which kept the entire community on edge, ended with a hopeful outcome: Mariano is safe and will soon be back in the arms of his loved ones.