Michael Santoro, 19, charged with threatening violence against Glenbard East High School

May 22, 2013 (LOMBARD, Ill.)

Investigators said students or staff were never in any danger.

Prosecutors say Santoro made the threat back in November 2012, but told a friend about it in February.

That friend did not tell police until two weeks ago.

Santoro is charged with felony disorderly conduct. He's being held on $500,000 bond.

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