A head-on collision in Tustin late Thursday night left two people dead, including a Rancho Santa Margarita woman.
She and a Corona man were the solo occupants of their respective Toyota Scions on Jamboree Road south of Edinger Avenue about 10:45 p.m., according to Tustin Police Sgt. Jeff Taylor.
Dead were Kaelyn Fergeson, 25, of Rancho Santa Margarita, and Kenneth Olson Jr., 29, of Corona.
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Authorities said it was not immediately clear whether alcohol or drugs played a role in the crash, and they would likely have to wait for a toxicology report.
The coroner pegged the time of death at 10:44 p.m.
According to Tustin Police Sgt. Todd Bullock, Fergeson was driving southbound in the northbound lanes of Jamboree Road between Edinger Avenue and Barranca Parkway.
Jamboree is four lanes wide at that point, and the speed limit is 60 mph.
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Bullock said a witness to the crash had already called 9-1-1 as Fergeson's two-door coupe approached Olson's XB.
"We had officers on the way there before the collision occurred, but we couldn't get there in time," Bullock said.
Officers found both victims dead at the scene.
According to Bullock, Ferguson apparently hit the curb on Jamboree just below Interstate 5 near Michelle Drive, the only uncontrolled intersection along that stretch of road. At that that point, she turned out of the southbound lanes and crossed into the northbound lanes.
Fergeson was a 2006 graduate of Trabuco Hills High with a 4.4 grade-point average who went on to Chapman University. Olson was married.
The crash closed Jamboree Road between Edinger Avenue and Barranca Parkway. The southbound lanes were later reopened, but the northbound side remained closed early his morning.
Anyone with information about the crash was urged to contact Tustin police at (714) 573-3225.
—City News Service contributed to this report