An image of an Afghan military ID badge circulating widely online Thursday that purportedly shows the suspect in the shooting of the National Guard members says he was assigned to the "Kandahar Strike Force" or "03" unit, one of a number of so-called "Zero Units" that worked closely with U.S. and other foreign forces during the war in Afghanistan.

The badge also carries the words "Firebase Gecko," which was the name of a base used by the CIA and special forces in Kandahar, in southern Afghanistan, inside what was previously the compound of the Taliban's founding leader, Mullah Mohammad Omar.

CBS News has not independently verified the authenticity of the ID badge shown in the photos, but CIA Director John Ratcliffe said the suspect had previously worked "with the U.S. Government, includi

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