NORTH COLLEGE HILL, Ohio – A school security guard was arrested Wednesday and charged with inducing panic for allegedly calling in multiple bomb threats to local elementary, middle and high schools.

Police used a GPS tracking system Wednesday to “ping” the prepaid cell phone used to make multiple bomb threats to several North College Hill schools Monday, Tuesday and Wednesday, Cincinnati.com reports.

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“When we pinged the phone and suddenly it’s here in (North College Hill High School) and around the school, and I’ve taken everything away from teachers and kids, well, who is there left?” North College Hill Police Chief Ryan Schrand told the news site. “And I starting tracking it, calling the phone and finding it myself. That’s when I narrowed it down to him.”

Schrand alleges contracted school security guard Christopher Darnell Files was in possession of the phone, and allegedly confessed to making the calls, WCPO reports.

“It’s very sad. The world today is quite different,” North College Hill schools superintendent Gary Gellert said. “Things have changed significantly. It used to be that these threats would be written on pieces of paper or on the bathroom stall.”

Gellert said the district brought Darnell in to North College Hill about two weeks ago after a large student fight on campus. Darnell has no prior criminal history, officials said.

News sites provide conflicting reports on the number of bomb threats this week, with Cincinnati.com reporting calls on Monday and Tuesday, and WCPO reporting three calls – Monday, Tuesday and Wednesday. Cincinnati.com reports Files faces two charges of inducing panic, while WCPO reports three counts.

Regardless, Gellert said the call Tuesday demanded money, while the others didn’t. Monday’s call resulted in officials evacuating the high school and middle school, which are in the same building. Tuesday’s call was directed at district elementary schools, which were also evacuated, according to media reports.

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The money demand was “something to the effect of ‘give me money or I’m going to blow up the school,’” Gillert said. “The others just threatened to bomb the schools.”

According to WCPO, “Police said Wednesday’s school evacuation was precautionary.

“Schrand said police were concerned when security cameras showed Files in the elementary and middle schools when he was not supposed to be there; he was unaccounted for for about 20 minutes, the chief said.”

Gillert pointed out the obvious irony of Files’ arrest.

“He was brought in because of safety concerns and he ended up causing more safety concerns,” he said.

Police officials are unsure why Files would make the threats.

“I don’t know if he was motivated by immaturity or peer pressure – or possibly peer pressure from all the recent school threats,” Schrand said.

Police inspected the school buildings after the threats and found nothing suspicious, and planned to conduct another scan today, when classes resume. Tomorrow is the last day before the district’s spring break, Gillert said, and district officials are assuring parents its safe for students to return to class, though they are taking special precautions.

School officials banned purses and bags at schools for today and tomorrow, and are asking students who bring their lunches to school to pack them in clear plastic bags, Cincinnatti.com reports.

“Evil is not going to win here. That was an evil act. With everything going on in the world,” Gellert said. “Evil’s not going to win here. We’ll be open (Thursday). I hope parents and kids feel comfortable and safe. I understand otherwise.

“We’ll teach the kids and do the best we can. It’s safe. He’s locked up.”