Rebecca Marodi, a Cal Fire captain stationed in Riverside County, was found stabbed to death inside of her own home in Ramona on Monday evening, authorities said.

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.

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.