A former prison warden in Philadelphia was charged with a cover-up involving a guard who brought a gun into the downtown federal prison.
U.S. prosecutors say 45-year-old Troy Levi created a cover story to suggest the guard had permission to bring the weapon inside because his trunk lock was broken.
They say the guard was the subject of a workplace violence investigation.
Authorities say the guard had a second security job at the nearby Liberty Bell, and said he forgot he had the weapon in his bag on Aug. 30, 2010.
Levi, of Williamstown, N.J., faces a maximum 110 years in prison if convicted of obstruction, witness tampering and lying to authorities. He does not have a listed phone number. His lawyer did not immediately return a message.
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