A search is underway for Yolanda Marodi, a Southern California woman who officials are saying is the primary suspect in the murder of her wife, San Diego Fire Captain Rebecca Marodi. The suspect had pleaded guilty previously to killing her first spouse more than a decade ago.

A manhunt is on for Yolanda Marodi, the wife of a California fire captain who was stabbed to death earlier this week in her San Diego-area home.

San Diego County investigators say that Cal Fire Captain Rebecca Marodi told her wife that she was ending their marriage just days before she was found stabbed to death inside of her home in Ramona.

Rebecca Marodi, 49, died after suffering several stab wounds last week. Investigators identified her wife as a suspect.

Authorities asked for help Monday to find an ex-con suspected of killing her wife, a veteran state firefighter, at the victim’s Ramona home — more than 20 years after pleading guilty in the slaying of her estranged husband.

Officials believe she may have fled to Mexico driving a 2013 Chevrolet Equinox with California license plate "8BQJ420."

A woman accused of stabbing her wife, a Southern California fire captain, to death was previously convicted in her husband’s eerily similar murder more than two decades ago.