A man pleaded guilty Wednesday to fatally shooting a woman, whom he had briefly dated, after she confronted him in his car in the Skyline neighborhood of San Diego last year. A preliminary hearing was set to start for Robert Haywood Reed, 38, on a charge of murder. He pleaded guilty to a charge of voluntary manslaughter and an allegation that he used a firearm, Deputy District Attorney Amy Colby said. Reed agreed to a 16-year prison term when he is sentenced on Aug. 9. He admitted he shot Sylvianita Widman, 27, on Aug. 25 at the intersection of South Meadowbrook Drive and Skyline Drive. That day, she was riding in a male friend’s car when they stopped behind Reed’s Mercedes Benz at a stop light. Widman got out of the car and approached Reed’s car, yelling, Colby said at a prior hearing. Widman was shot once and collapsed in a parking lot. Police said the man she had been riding with drove away. Widman died at a hospital. San Diego police released Reed’s name as a suspect in the shooting and he turned himself on Sept. 6. Authorities said she and Reed had dated for about a month.