An Iranian-Afghan policewoman who killed a US contractor at police headquarters in Kabul may have been motivated by a personal grudge, said security officials, who were also probing possible Taliban or al Qaeda involvement.
They said the woman seemed wracked with remorse over the shooting of Joseph Griffin, 49.
They added that she held an Iranian passport but offered no evidence that Iran may have orchestrated the attack.
She arrived at police headquarters and headed to a bathroom where she loaded a pistol and hid it under her long scarf, they said. She then approached the American police trainer as he was walking to a canteen and shot him.
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