An 18 year-old woman was killed in a bizarre four-car crash Friday before dawn on I-95 in Broward County just south of Sheridan Street.<p/> Ashley Bonilla, of Port St. Lucie, a passenger in a Nissan Sentra, was killed around 4:30 a.m. as she stood outside the car that was disabled in the fast-moving roadway after having crashed just moments earlier with another vehicle.