A Chinese tycoon who died on Christmas Day was poisoned, Shanghai police say.
Lin Qi, 39, was the chairman and chief executive of games developer Yoozoo, best known for the Game of Thrones: Winter Is Coming strategy game.
The Shanghai police statement pointed to one of Mr Lin's colleagues - identified only by his surname Xu - as the main suspect.
Mr Lin was believed to have a net worth of around 6.8bn yuan (£960m), according to the Hurun China Rich List.
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