Homicide Investigation – Suspect In-Custody


Reporting Deputy: Investigator Lance Stoyer

File # Y240140027


As the investigation into the homicide of Elba Estrada continued, Riverside County Sheriff’s Investigators learned that Marilyn Cardenas was the daughter of Estrada.  Estrada was determined to be a resident of San Bernardino, California and Cardenas had recently relocated to the Coachella Valley.


On Sunday, January 14, 2024, approximately 5:50 p.m., Deputies from the Thermal Sheriff’s Station responded to the 83000 block of Avenue 48, in the city of Coachella, after receiving multiple reports of an assault with a deadly weapon that had just occurred.

Upon arriving at the location, the deputies located a 53-year-old Hispanic female, later identified as Elba Estrada, suffering from a stab wound and lying on the ground. First aid was administered to Estrada, however, she succumbed to her injury at the location.

Marilyn Cardenas

During the course of the initial investigation, Marilyn Cardenas, a 22-year-old resident of San Bernardino, was identified as the suspect in the incident and was arrested without incident. Cardenas was later booked into the John J. Benoit Detention Center for the murder.

There are no outstanding suspects sought in this investigation. Anyone with additional information is encouraged to contact Investigator D. Robertson with the Central Homicide Unit at (951) 955–1700 or Investigator Davis-Ardon with the Thermal Sheriff at (760) 863–8990.

For media inquiries regarding this incident please contact the Media Information Bureau.

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