Two students arrested in Corona High School threat investigation, police say

Archival aerial photograph of the Corona High School campus and surrounding streets in Corona, California. — Corona-Norco Unified School District (archival campus photograph; not a scene from the investigation)

Summary

The FBI alerted Corona police on October 6 to online communications about a possible threat to Corona High School.
Police say two 15-year-old students were arrested and remain in custody on conspiracy to commit murder charges as the district attorney reviews the case.
Police say no weapons were found in searches; they did not specify a date for the alleged future attack.

What police announced

Two 15-year-old students have been arrested in an investigation into an alleged plan to attack Corona High School in Corona, California, the Corona Police Department said in an October 20 release. One attends Corona High School and the other attends Norco High School, according to police. The arrests concern a possible future attack, not a shooting that took place at either campus. Both students remained in custody on conspiracy to commit murder charges when police issued the release. The Riverside County District Attorney’s Office was reviewing the case.^{[1] [2]}

The department said the FBI contacted local investigators on October 6 after identifying online social-media communications about a possible threat to Corona High. A joint investigation led to the arrest of the Corona High student. Detectives then examined electronic devices and communications under search warrants and searched several Riverside County residences, identifying and arresting the Norco High student. Police did not give the precise date of the second arrest in their release.^{[1] [3]}

What investigators say they found

According to the police account, evidence indicated the two students had researched school shootings over several months and discussed how they might carry out an attack at Corona High School at an unspecified future time. Police said their communications included discussion of ways to obtain weapons, but investigators believed they had not obtained them. No weapons were located during the searches, the department said. These are allegations described by investigators, and the public release does not provide the underlying messages or search-warrant records for independent examination.^{[1] [2]}

The department did not identify a date for the alleged attack, explain whether any particular people had been targeted, or announce a motive. It also did not set out a court schedule or say what decision prosecutors would make after reviewing the case. Those unanswered questions matter: an arrest and a reported investigative finding should not be confused with a conviction or a complete account of what happened.^{[1] [3]}

School and community response

The Corona-Norco Unified School District, which police identified as a partner in the investigation, told CBS Los Angeles that the two students have not returned to school since their arrests. The district said the news could unsettle families and that student and staff safety remains its priority. The police release did not announce a campus lockdown or provide a new school-operations schedule. Families seeking operational guidance should rely on direct communications from the school or district rather than assuming a change from the arrests alone.^{[1] [3]}

Corona police said they are working with the FBI, the Riverside County Sheriff’s Office and the school district as the investigation continues. The department asked parents and students to report concerning information promptly, and invited anyone with information about this case to contact Detective Edwards at 951-279-3656. The release did not report any shooting or any injuries. Its concrete safety finding was that investigators found no weapons in the searches; it did not offer a broader guarantee about all possible threats.^{[1] [2]}

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