On November 29, 2012, a bomb placed at the back door of the Casa Grande, Arizona, U.S. Social Security Administration office shook the city's downtown but failed to breach the building. [1] [2] An Iraqi-born convicted felon, Abdullatif Ali Aldosary, 47, was charged. [3] [4] Evidence collected at his home shows he researched "terrorist bombs" and amassed appropriate materials. [5] Aldosary, allowed entry as a refugee, was denied a green card based on his "terrorism-related activities" as an insurgent fighting Saddam Hussein in 1991. [6] No motive has been suggested by authorities. [7] Aldosary was also charged with an unrelated murder that occurred two days before the bombing. [8]