Moscow (CNN) -- Russian investigators were hunting Thursday for the assassin of a reputed Russian mafia kingpin who was fatally shot by a sniper outside a restaurant in central Moscow. Aslan Usoyan, also known as Granddad Khassan, was the target Wednesday afternoon of what appears to be a contract killing amid a gangland turf war, state media said. A restaurant worker injured in the shooting was in a critical condition Thursday, state-run Itar-Tass news agency reported, after being hit by two bullets. She suffered damage to her spine and lungs, and is on a ventilator, the news agency reported.
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NEW: A restaurant worker injured in the shooting may be paralyzed, state media say
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Investigators are hunting for the assassin of a reputed Russian mafia kingpin
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Aslan Usoyan, also known as Granddad Khassan, was shot at a restaurant, authorities say
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Usoyan had been involved in the criminal underworld for decades, state media report
Moscow
Moscow
He was involved in gambling, drug trafficking, illegal arms sales and extraction of mineral resources, it said, and controlled organized crime groups in @placeholder and across the country.