Nikki Catsouras was traveling north on the 241 Toll Road in Lake Forest at approximately 1:40 P.M., when she clipped a gray Honda Civic she was attempting to pass while traveling at an estimated 100 mph. The driver of the Civic was a 20-year-old man named Justin Thompson, of Rancho Santa Margarita. The Porsche flew out of control, crossed the toll road's broad median (which lacks a center barrier on that segment) and hit a solid concrete toll booth near the Alton Parkway interchange; the Porsche was destroyed. Nikki died at the scene, Thompson was taken to a hospital with "minor to moderate injuries." California Highway Patrol officers said that alcohol did not play a part in the accident.