Norwalk Police responded to the shooting outside a market in the 9100 block of Painter Avenue around 12:07 p.m. According to police, the victim, a 17-year-old Hispanic male, was shot during a confrontation with a group of young men.
"At some point during the confrontation, a handgun was produced, and the deceased suffered a fatal gunshot wound," said Los Angeles County Sheriff's Department Lt. Dave Dolson.
The victim was transported to Whittier Presbyterian Hospital in serious condition and was later pronounced dead. According to one witness, the boy was shot in the head.
Sierra Continuation School was placed on lockdown. It was unknown if the victim was a student at the school or surrounding schools. While Sierra was the only school on a confirmed lockdown, other schools in the area were voluntarily placed on lockdown as a precaution.
Whittier City School District officials believe the victim was a former student, although he was not currently enrolled at any of their campuses.
There was no initial suspect description. Police also did not have a motive for the killing but were interviewing several witnesses Monday afternoon.
Anyone with information about this incident should contact the Los Angeles County Sheriff's Department's Homicide Bureau at (323) 890-5500.