Three Teens Arrested in Connection with Rancho Cucamonga High School Stabbing

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RANCHO CUCAMONGA – The  stabbing of a 17-year-old male Rancho Cucamonga High School student caused a lockdown of both the High School and the nearby Carlton Lightfoot Elementary School Wednesday. At around 1:22 p.m. deputies from the Rancho Cucamonga station were dispatched to the report of a stabbing on the Rancho Cucamonga High School campus.

A deputy arrived within a minute of the call to find the victim suffering from a non-life-threatening stab wound to his abdomen. Deputies collected witness statements, learning that there were at least three people involved in the stabbing that had ran from the campus into the surrounding neighborhood. The whereabouts of these students was unknown so the schools were quickly placed on lockdown, while Los Osos High School was placed on a temporary campus restriction since there was an unknown number of suspects, one or more potentially being armed with the weapon used in the stabbing.

Two of the three suspects were quickly located by deputies and school staff. “ During the lockdowns, deputies performed protective sweeps of the campuses,” sheriff officials said.  “The time of the school lockdowns was close to the time of school dismissal. This allowed deputies to search adjacent neighborhoods without the influx of students that would have been released if the lockdown was issued.”  A call from a concerned citizen reporting the third suspect alerted deputies to his whereabouts and he was arrested without incident.

All three juvenile suspects, two 17-year-old’s and one 15-year old, all students from Rancho Cucamonga High School were detained and were confirmed to be involved in the stabbing. Authorities said that the victim and suspects were involved in an ongoing dispute prior to this incident. The weapon used was located and the three suspects were booked into juvenile hall for assault with a deadly weapon and conspiracy. The investigation is ongoing, and additional charges may be pending. Although there is no known credible threat at the school and this is believed to be an isolated incident, additional police presence will be at the school campus.

The victim was transported to a local hospital for the treatment of his stab wound. No other injuries were reported as a result of this incident.

Anyone with information regarding this incident is urged to contact the Rancho Cucamonga Police Department at (909) 477-2800. Callers wishing to remain anonymous may contact the We-Tip Hotline at 1-800-78CRIME (27463) or you may leave information on the We-Tip website at

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