Police have announced the arrest of a driver who ran a red light and struck an Uber carrying four passengers early Saturday morning in South Los Angeles, killing three. Gregory Black, 31, has been taken into custody and faces charges of vehicular manslaughter after he police determined that he was allegedly behind the wheel of the speeding Mercedes Benz that ran a red light at the intersection of S. Vermont Avenue and W. Century Boulevard, T-boning the Uber driving through the area. The crash happened around 5:30 a.m., according to the California Highway Patrol. Witnesses said the white Mercedes-Benz, with...