Yolanda Marodi, who is suspected in the slaying of her wife, a Cal Fire captain, pleaded guilty in 2004 to voluntary manslaughter in the fatal stabbing of her then-husband.

Marodi, 49, a captain with the California Department of Forestry and Fire Protection (Cal Fire), was found at her Ramona residence with multiple stab wounds on the night of Feb. 17, after deputies responded to a call for an assault with a deadly weapon, according to a statement from the San Diego County Sheriff’s Office.

The San Diego County Sheriff’s Department on Thursday identified the person they believe to be responsible for stabbing a Cal Fire captain to death in her Ramona home earlier this week.

Rebecca's wife, Yolanda Marodi—also known as Yolanda Olejniczak— was also a veteran firefighter with Cal Fire, having served more than 30 years in the department. Despite her being widely respected by colleagues, Yolanda has been named the primary suspect, according to the San Diego County Sheriff's Office.

Detectives with the San Diego Sheriff's Department "are treating this case as a potential domestic violence incident," officials said

Rebecca Marodi was found in her San Diego-area home Monday. A woman has been identified as a suspect in her slaying, but her whereabouts are unknown.