The man believed to have crashed his car into an Uber at 100 mph, killing three in South LA over the weekend, was on probation tied to a 2020 murder case. Gregory James Black Jr. allegedly T-boned the Uber while running red lights and speeding up Vermont Avenue, killing three women in their 20s and injuring another passenger and the driver. Police arrested Black, who was also injured in the crash, after he was discharged from the hospital.