Afghanistan slaying:

She’s the first female accused in a spate of insider attacks.

the policewoman who killed an american contractor in Kabul is a native iranian who displayed ‘unstable behavior’but had no known links to militants.

KABUL, AFGHANISTAN — The policewoman who killed an American contractor in Kabul is a native Iranian who came to Afghanistan and displayed “unstable behavior” but no known links to militants, an Interior Ministry spokesman said Tuesday.

The policewoman, identified as Sgt. Nargas, shot 49-year-old Joseph Griffin, of Mansfield, Georgia, on Monday, in the first such shooting by a woman in a spate of insider attacks by Afghans against their foreign allies. Nargas walked into a heavily-guarded compound in the heart of Kabul, confronted Griffin and gunned him down with a single bullet.

The U.S-based security firm DynCorp International said on its website that Griffin was a U.S. military veteran who earlier worked with law enforcement agencies in the United States. In Kabul, he was under contract to the NATO military command to advise the Afghan police force.

Insider killings have eroded the trust between the foreign contingent and the Afghan government, just a year before most NATO troops are set to turn security responsibility over to local forces.

The ministry spokesman, Sediq Sediqi, told a news conference that Nargas, who uses one name like many in the country, was born in Tehran, where she married an Afghan. She moved to the country 10 years ago after her husband obtained fake documents.