CHARIKAR, Afghanistan - Sayed Jalal furrowed his eyebrows in anger as he vowed to avenge the public execution of a woman in front of a large crowd not far from Kabul, brazen violence that spurred shock and sharp condemnation from Afghan authorities and the United States.

The Taliban denied involvement in the killing in Parwan province, in which an unnamed woman's head and body were riddled with bullets at close range in punishment for alleged adultery.

Authorities in Kabul directly blamed the Islamist group.

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