SIMI VALLEY, Calif. (KABC) -- The death of a Simi Valley mother of two whose remains were found in a remote location in the Antelope Valley was officially ruled as a homicide, authorities said.
The Los Angeles County Coroner determined Rachel Castillo, 25, died from "multiple sharp force injuries."
Note: The video in the media player above is from a previous report.
Castillo was reported missing after her sister found a bloody scene at her Simi Valley home on Nov. 10. Many of her belongings -- including her phone, keys and car -- were still at the home she shared with her sister, her family said.
The discovery triggered a search for Castillo. Her remains were later found in a remote location in the Antelope Valley. The coroner named her place of death as "desert."
Detectives arrested Castillo's ex-husband, Zarbab Ali, a 25-year-old Hawthorne resident. He was arrested at his parents' home in Victorville in connection with the homicide.
Ali was charged with murder and the special allegations of lying in wait and use of a knife, according to the Ventura County District Attorney's Office.