When police searched the hotel room of the AWOL American soldier accused of planning a deadly bombing and shooting spree outside Fort Hood, Texas, between the firearms, ammunition and bomb-making materials, senior law enforcement officials said they also picked up a possible clue to the soldier’s motivation — an article from a jihadi magazine produced by al Qaeda.

The officials told ABC News Private First Class Naser Jason Abdo had apparently stashed in the room an article from the first issue of al Qaeda’s “Inspire” magazine called “How to Build a Bomb in the Kitchen of Your Mom.”

In addition to the magazine, one senior U.S. official told ABC News Abdo had also mentioned the name of one of the most high profile leaders of the Yemen-based al Qaeda in the Arabian Peninsula (AQAP), American-born Anwar al-Awlaki.

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