An arrest warrant was issued for the woman after coroner's investigators concluded the boy died from an overdose of fentanyl and xylazine, officials said.

Ryan Dwayne Turner Jr., 22, of San Bernardino, appearing in Superior Court in Victorville, also denied charges of evading a peace officer with wanton disregard for safety and taking a vehicle without the owner’s consent. He faces 17 years to life in state prison if convicted of all three felony charges, District Attorney Jason Anderson said.