Two 15-year-old girls arrested over alleged plot to carry out California high school massacre

Read the original at The Independent ↗
Cite

Farrell, P. (2026, October 21). Two 15-year-old girls arrested over alleged plot to carry out California high school massacre. The Independent. https://www.independent.co.uk/news/world/americas/crime/corona-high-school-teens-arrested-b3070793.html

Dated from the outlet's own feed. Check the original for its byline.

The Independent · collected 2026-10-21 · by Paul Farrell

Quick Summary

Two fifteen-year-old girls from separate schools in Riverside County, California, have been arrested for allegedly plotting to carry out an attack at Corona High School. The FBI discovered social media messages suggesting the planned attack and alerted local authorities. Investigators found that the teenagers had spent months researching school shootings but had not managed to obtain any weapons. Both suspects remain in custody while prosecutors review the evidence to determine next steps, with no indication of a specific date or immediacy for the alleged attack.
Written locally by qwen2.5:14b on 2026-10-21, using this article's own text rather than the other coverage of the same event (that is the story summary below).

AI analysis runs on qwen2.5:14b, locally

Story summary

As of October 21, 2026, two 15-year-old girls from different high schools in Riverside County, California, were arrested by local police and the FBI for allegedly plotting to carry out a school shooting at Corona High School. The investigation began on October 6 when the FBI alerted the City of Corona Police Department about threatening social media messages. Authorities found that the suspects had spent several months researching past school shootings and discussing methods to obtain weapons, though they were unsuccessful in acquiring any actual firearms or other dangerous items during searches. No weapons were located at the residences searched by police. Both girls remain in custody on charges of conspiracy to commit murder, with potential sentences ranging from severe penalties if tried as adults to less harsh punishments under juvenile law.

Written for “Teen Girls Arrested For School Shooting Plot” on 2026-10-21, grounded in this article and the 2 other(s) covering the same event.
Why this leaning score
This article does not take a side on a contested political question, so it has no leaning score. That is an answer rather than a gap: a match report or a rescue can be warmly or critically written without being left or right, and scoring it anyway is how approval of a subject gets recorded as a political position.
No political leaning scored for article 96416 · logged 2026-10-21

Story

📰 Teen Girls Arrested For School Shooting Plot
Crime & Law · 3 article(s) covering the same event. Compare every outlet's account →

Compared with similar articles

This article reads unscored and hedges 11% of its claims. Each row says how that neighbour differs.
ABC News (US)
⚖️ leaning not scored 🔴 10% hedged 1 of 10 📰 publisher trust 59
“Both articles describe the arrest of two 15-year-old girls for allegedly plotting a school shooting at Corona High School in California, based on information from police and FBI investigations.”
New York Post
⚖️ leaning not scored 🔴 14% hedged 3 of 21 📰 publisher trust 66
“Both articles describe the arrest of two 15-year-old girls in Riverside County, California for plotting a school shooting at Corona High School.”
How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
19
sentences that state something as happening or true
Uncertain
11%
2 of 19 hedged ("reportedly", "may", "according to")
Leaning
not political
takes no side on a contested political question
Publisher signals
59/100
The Independent's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
3
Crime & Law
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-10-21 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

The Independent · 2777 article(s) · 6 correction(s) detected
Running correction rate · 6 correction(s)

Who wrote this

Paul Farrell
29 article(s) here · 1 carrying a prediction
🔮 The investigation led officers to a second suspect, a 15-year-old girl attending nearby Norco High School, who was also taken into custody. "The evidence obtained showed the two suspects had spent several months researching school shootings and discussed how they could carry out a potential attack at Corona High School on an unspecified future date," Corona police said.
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🔮 "Our officers and investigators will continue working to understand exactly what happened," Sullivan said.
🔮 The drug, known as cychlorphine, can stop a person from breathing even in extremely small quantities and may be lurking undetected in illegal drugs, authorities warned Thursday.
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🔮 He is expected to require another operation to reconstruct his injured ankle.
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Also by Paul Farrell
Nothing else under this byline is closely related to this article, so these are simply their most recent.
All 29 articles by Paul Farrell →

Topics

California Corona High School FBI Independent Riverside County

Subjects

Corona High School ORG · 3× FBI ORG · 3× Riverside County GPE · 2× California GPE · 1× Corona GPE · 1× Independent NORP · 1× Norco High School ORG · 1× the Corona Police Department ORG · 1× the Riverside County District Attorney's Office ORG · 1× the Riverside County Sheriff's Office ORG · 1×

Narrative

The alleged plot came to light on October 6 when the FBI alerted the Corona Police Department to social media communications suggesting that an attack was being planned. Investigators subsequently identified a 15-year-old Corona High School student as a suspect and arrested her.
framing: assertive · carried by 1 article(s) · first seen 2026-10-21
🔮 The investigation led officers to a second suspect, a 15-year-old girl attending nearby Norco High School, who was also taken into custody. "The evidence obtained showed the two suspects had spent several months researching school shootings and discussed how they could carry out a potential attack at Corona High School on an unspecified future date," Corona police said.

Claims (19 extracted, 2 hedged)

Two 15-year-old girls have been arrested in California after allegedly spending months researching school shootings and plotting an attack on a high school, authorities said Wednesday. uncertain
authorities → arrest → school
The teenagers, who attend separate schools in Riverside County, are suspected of conspiring to carry out an attack at Corona High School on an unspecified future date. asserted
who → attend → date
Police said the pair had discussed how to obtain weapons but had not managed to acquire any. asserted
pair → say → any
No firearms or other weapons were recovered during searches of several properties. asserted
firearms → recover → properties
Both girls remain in custody on suspicion of conspiracy to commit murder. asserted
girls → remain → murder
FBI uncovers chilling social media messages asserted
FBI → uncover → messages
The alleged plot came to light on October 6 when the FBI alerted the Corona Police Department to social media communications suggesting that an attack was being planned. Investigators subsequently identified a 15-year-old Corona High School student as a suspect and arrested her. asserted
Investigators → allege → her
Detectives then executed search warrants at several Riverside County residences, examining electronic devices and communications as they attempted to establish the extent of the alleged plot. asserted
they → execute → plot
The investigation led officers to a second suspect, a 15-year-old girl attending nearby Norco High School, who was also taken into custody. "The evidence obtained showed the two suspects had spent several months researching school shootings and discussed how they could carry out a potential attack at Corona High School on an unspecified future date," Corona police said. uncertain
police → lead → date
Investigators said the teenagers had also discussed ways of obtaining weapons, although there was no evidence that they had successfully acquired any. " asserted
they → say → any
Communications showed the suspects discussed methods to obtain weapons but had not yet been able to do so. asserted
suspects → show → weapons
No weapons were located during the searches," police added. asserted
police → locate → searches
Teenagers held as prosecutors review alleged murder conspiracy asserted
prosecutors → hold → conspiracy
The two suspects remain detained while the Riverside County District Attorney's Office reviews the evidence and determines how to proceed. asserted
Office → detain → evidence
Authorities have not disclosed the teenagers' identities, the precise nature of their alleged plans or whether they had selected a specific date for the attack. asserted
they → disclose → attack
Police also have not indicated that any weapons were obtained or that an attack was imminent. asserted
attack → indicate → ?
The investigation involved the FBI, the Riverside County Sheriff's Office and the Corona-Norco Unified School District. asserted
investigation → involve → FBI
Anyone with information about the case is urged to contact Corona Police Department Detective George Edwards at 951-279-3656 or George.Edwards@CoronaCA.gov. asserted
Anyone → urge → 3656
The allegations remain under investigation, and neither teenager has been convicted of a crime. asserted
teenager → remain → crime
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