Home security camera footage allegedly captured a slain California fire captain pleading for her life while her wife, who is accused of her murder, was holding a knife.

A car that had been driven by Yolanda Marodi, who is suspected of killing her wife, Rebecca "Becky" Marodi, crossed into Mexico the night of the slaying, according to the Department of Homeland Securi

Captain Rebecca "Becky" Marodi served over 30 years with CAL FIRE. Homicide Unit detectives are working to determine the circumstances that led to the woman’s death and the possible motive.