The mother of a 17-year-old girl who was stabbed to death at a South Gate high school had warned officials that her daughter's ex-boyfriend had recently been released from jail after allegedly threatening the girl.
Los Angeles Unified School District Superintendent John Deasy tells KNX radio Monday that the mother warned the school last week that 18-year-old Abraham Lopez was released from jail following an arrest for making threats.
Lopez has been charged with 10 felony counts, including murder. He is scheduled to be arraigned Tuesday in Downey Superior Court.
Deasy says security was told but Lopez didn't show up at Southeast High School in South Gate until Friday, when he allegedly stabbed 17-year-old Cindi Santana during an argument.
Lopez remains jailed. Grief counselors are at the school Monday.
Deasy says security measures at every school will be reviewed in the wake of the killing.