WEST CALDWELL, New Jersey (WABC) -- Administrators placed a New Jersey high school on lockdown Saturday after a former student allegedly posted a picture online of him posing with a gun.
Another student alerted West Caldwell Police, who went to James Caldwell High School to investigate.
The school was hosting a 'Music Marathon' fundraising event. No danger was found, but the event was called off as a precaution.
The former student was arrested.
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New Jersey school placed on lockdown after former student poses with gun in online photo
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