The possibility of justice for the Benghazi victims is looming. (Dennixo, Wikimedia Commons)

The suspect is Libyan militia leader Ahmed abu Khattalah. He is the first arrest in connection with the attack, which resulted in the death of U.S. Ambassador Christopher Stephens as well as three other U.S. citizens. 

Khattalah is being held in a secret location outside Libya, according to a U.S. official. 

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