The Chinese Massacre of October 1, 1871 was a race riot in Los Angeles, California, when a mob of around 500 white and Mexican men entered Chinatown and attacked, robbed, and murdered Chinese residents. After hearing that a policeman had been shot and a rancher killed by Chinese, a mob gathered and hanged an estimated 20 Chinese immigrants. Ten of the rioters were prosecuted and eight were convicted of manslaughter, but their convictions were later overturned.