By City News Service | PUBLISHED: May 25, 2019 at 8:00 am | UPDATED: May 25, 2019 at 8:55 am SILVERADO — A motorist was killed and his four passengers suffered critical injuries Saturday morning when he slammed his sedan into a tree along Santiago Canyon Road in Silverado, authorities said. The crash in the area of Santiago Canyon and Haul roads occurred just before 2:25 a.m. and involved a car striking a tree, the CHP reported. The motorist was pronounced dead at the scene, Orange County Fire Capt. Carlos Huerta said. Paramedics rushed four people — three men and a woman — to area trauma centers in critical condition, Huerta said. A representative from the Orange County coroner’s office was dispatched to the scene at 3:36 a.m., the CHP said. The crash involved a black Honda Accord, according to sources at the scene.