Just after 9 a.m., Los Angeles County sheriff's deputies confirmed that Highland High School had been cleared; the lockdown was lifted about 90 minutes later.
McDonnell said the boy's mother had called the officer earlier in the morning to tell him she and her husband were having trouble with him and that the teen had run away.
Sheriff's deputies also received a call reporting shots fired in the vicinity of Manzanita Elementary School about seven miles away from Highland High School.
It wasn't clear Friday afternoon if the shooting happened outside or inside the school. "Alexander, turn around, turn around, there's an active shooter.' And I didn't really have time to react to that because nearly immediately after that I heard one single gunshot very loud and very close by". The campus was then placed on lockdown and students were told to shelter in place, McDonnell said. Both individuals are said to be attending the high school.
Highland High student Katharina Smith, 16, said she was driving to the school when she saw "a ton of police racing toward school". "And he's like, 'No mom, for reals, I locked myself up". "Thankfully we only had one child that was shot".
Faculty also provided surveillance video of the suspect arriving and leaving the school, which "assisted in the quick apprehension" of the suspect, McDonnell said. "And I'm locked up in one of the buildings now'".
Betsy Sanchez, a spokeswoman for the Antelope Valley Union High School District, said the office is in contact with victim's family. Extra counselors will be at all schools to assist students and staff.
Investigators say the shooting stemmed from a dispute between the 14-year-old and the victim.
Palmdale, a city of about 150,000 people, is in Los Angeles County, about 40 miles north of downtown Los Angeles. He didn't elaborate. The injured student is expected to make a full recovery. A 12-year-old girl was booked for negligent discharge of a firearm in that shooting, which was considered "unintentional", Los Angeles police said. Deputies say a 14-year-old suspect was taken into custody after the shooting.
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