Audrey DuBose, left, the mother of Sam DuBose, an unarmed black motorist fatally shot during a July 2015 traffic stop, and one of her daughters, Terina Allen, right, listen to proceedings during Ray Tensing's retrial Monday, June 12, 2017, in the Hamilton County Courthouse in Cincinnati. The former University of Cincinnati police officer, charged with murder and voluntary manslaughter, has said he thought DuBose was trying to kill him with his car, prompting Tensing to open fire to stop the threat. Fellow University of Cincinnati police officer David Lindenschmidt testified Monday, June 12, 2017, there was "no question" he heard tires squealing before a gunshot. (Cara Owsley/The Cincinnati Enquirer via AP, Pool)