An individual suspected of playing a role in the 2012 Benghazi attacks has been found dead, a Libyan source and locals in the town of Marj told CNN.

Faraj al-Shibli was last seen two days ago being detained by a local militia, a source told CNN.

It was not immediately clear what happened to him or what caused his death.

His body was found Monday, locals also confirmed to CNN.

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