Hunter College

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This January 24, 2013 photo provided by The Silberman School of Social Work at Hunter College shows security officer Griselde Camacho on duty at the school in New York. Camacho, 45, who worked for the university since 2008, was killed Wednesday, March 12, 2014 in gas leak-triggered explosion that reduced two buildings in the East Harlem neighborhood of New York to a pile of smashed bricks, splinters and mangled metal. Rescuers pulled four additional bodies from the rubble Thursday, raising the death toll to at least seven. (AP Photo/The Silberman School of Social Work at Hunter College, Jim Agolli)