A California man will spend the rest of his life behind bars after a jury convicted him Friday of first-degree murder for the calculated ambush and slaying of his estranged wife, Rachel Castillo.
Zarbab Ali, 28, was found guilty of killing the 25-year-old mother in her Simi Valley apartment in November 2022. According to the Ventura County District Attorney’s Office, Ali faces a mandatory life sentence without the possibility of parole at his sentencing hearing scheduled for Jan. 12.
The conviction brings a grim conclusion to a case that began as a frantic missing persons search and ended with disturbing courtroom revelations about the defendant’s actions before and after the murder.
A “Significant Amount of Blood”
The investigation began on Nov. 10, 2022, when Castillo’s sister returned to the apartment they shared and walked into a terrifying scene. Rachel was gone, but her keys, phone, and vehicle were still there. Inside the home, her sister discovered a “significant amount of blood,” prompting an immediate call to 911.
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“As soon as I saw the blood, that’s when I realized something wasn’t right,” the sister told KABC at the time of the disappearance. “I checked her bathroom, under her bed, her closet… but she wasn’t anywhere.”
Investigators determined a violent struggle had taken place. Three days later, on Nov. 13, FBI agents and local police located Castillo’s remains buried in a shallow grave in a remote section of the Antelope Valley. Ali was arrested the following day.
Lying in Wait
During the trial, jurors heard harrowing details of how Ali orchestrated the attack. According to courtroom reports from the Ventura County Star, Ali confessed to detectives that he had been contemplating killing his wife, from whom he had been separated for nine months.
On the day of the murder, Ali picked up the couple’s two children from Castillo’s apartment and dropped them off at his parents’ house. He then returned to his wife’s home, finding the door unlocked.
Ali told police he initially hesitated, claiming, “Everything in my body was telling me not to do it.” However, after entering the apartment, he cut the lights and waited in the darkness for Castillo to emerge from her bedroom. When she did, he attacked her with a kitchen knife, stabbing her three times.
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While testifying in his own defense, Ali contradicted his initial claims to police that the death was quick. “In reality, she put up a fight,” he told the jury. “I was a brute. I pushed her down, and it was gory beyond belief.”
Disturbing Aftermath
The testimony took a darker turn when details regarding Ali’s actions after the murder were revealed. After burying Castillo in the desert, Ali returned to the grave site the following day. He dug up her body and engaged in sexual acts with the corpse.
He reportedly attempted to explain this behavior to detectives as a way to solidify his own guilt.
“Just to confirm that I am a monster, I raped her,” Ali told investigators. “If I didn’t commit to being a monster, then she would have died for no reason.”
On the stand, Ali claimed he was driven by intense jealousy after learning Castillo wanted a divorce and had fallen in love with another man. “She was my entire world at this point, and it all just crashed around me,” he testified.
Justice Served
Following the verdict, Rachel Castillo’s family expressed relief. Her father, Chris Castillo, told reporters they were grateful that “justice will be served in this case in this life and the next.”
Senior Deputy District Attorney David Russell praised the work of law enforcement in securing the conviction, noting that while the verdict cannot undo the loss, it ensures the community is safe.
“Our thoughts are with Rachel’s family, who have endured unimaginable pain since the day she was taken from them,” Russell said. “This conviction ensures the defendant will spend the rest of his life in prison.”
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