Tragic Traffic Crash on Highway 74 Kills Motorcycle Rider [Rancho Santa Margarita, CA]. Motorcyclist Fatally Struck by Mercedes-Benz on Ortega Highway in Rancho Santa Margarita Rancho Santa Margarita, CA (December 1, 2024) On Saturday afternoon, a disastrous traffic crash on Highway 74 led to the death of a motorcyclist. According to the California Highway Patrol (CHP), the fatal crash happened at about 12:15 p.m. on the eastbound side […]