The Murder of Luis Banchero Rossi

The Banchero case remains one of Peru's best-known twentieth-century criminal cases. The legal record reached a final Supreme Court judgment, but contradictory statements, forensic questions and competing narratives kept public debate alive long after the convictions.

A national business figure

Luis Banchero Rossi was a prominent Peruvian industrialist whose fishing and fishmeal businesses had made him one of the country's most recognizable businessmen. On January 1, 1972, he went to his country residence in Chaclacayo, east of central Lima.

Later that day, members of the household discovered him dead inside the property. Contemporary reporting and later archival reviews documented stab wounds and blunt-force injuries. The killing immediately became a major national story.

The first accounts

Banchero's secretary, Eugenia Sessarego, was at the residence. Her early account blamed Juan Vilca Carranza, the young son of the property's gardener, describing an armed intrusion and saying she had been restrained or confined during the attack.

Vilca was arrested, but the investigation soon became complicated by changing statements and contradictions. At one stage he denied being the killer and accused Sessarego. Investigators and courts spent years testing competing accounts, forensic findings and alleged relationships among the people present.

Forensic and investigative disputes

Later reporting based on the historical file noted inconsistencies between some early narratives and forensic findings. Among the issues discussed publicly were the timing of restraints placed on the victim and the sequence of injuries. Those disputes are part of why the case has remained controversial.

They do not, however, justify replacing the judgment with an unsupported alternative theory. This archive therefore presents both layers separately: what the courts ultimately decided, and why later writers continued to question whether the complete factual story had been uncovered.

The 1976 Supreme Court judgment

On June 2, 1976, after a proceeding that had lasted more than four years, the Criminal Chamber of Peru's Supreme Court issued the definitive judgment. According to the historical record published by El Comercio, Juan Vilca Carranza and Eugenia Sessarego Melgar were declared coauthors of the homicide and each sentenced to 20 years in prison.

Three other defendants named in the broader proceedings were acquitted. The Supreme Court's resolution became the final judicial disposition of the murder case.

Pardons and the continuing debate

The convictions remained in place, but both principal defendants were later pardoned by the military government of Francisco Morales Bermúdez. Sessarego was released in December 1977 and Vilca in December 1978.

A pardon is not the same as an acquittal or reversal of conviction. The case is therefore classified here as solved / adjudicated in the legal sense, while the text preserves the historical controversy surrounding the evidentiary narrative.

Timeline

1. January 1, 1972
   Banchero is killed in Chaclacayo

   The industrialist is found dead at his country residence after a violent attack.

2. January 1972
   Early arrests and conflicting statements

   Eugenia Sessarego and Juan Vilca Carranza become central figures in the investigation as their accounts are scrutinized.

3. 1972–1976
   Long judicial proceedings

   Investigators, forensic specialists and courts examine contradictory testimony and physical evidence across a record running to thousands of pages.

4. June 2, 1976
   Supreme Court judgment

   Vilca and Sessarego are declared coauthors of the homicide and sentenced to 20 years each.

5. December 1977
   Sessarego is pardoned

   She is released after a government pardon; the conviction itself is not judicially erased.

6. December 1978
   Vilca is pardoned

   He is also released by pardon.