The Florida Highway Patrol says a 34-year-old Pensacola woman was killed and a 21-year-old Pensacola man critically injured in a four-vehicle traffic crash Wednesday night on Mobile Highway and Eight Mile Creek Road. Troopers say about 8:55 p.m. a pickup driven by Kyle Harrison, of Pensacola, rear-ended a stopped vehicle driven by 36-year-old Chanphana Tran, of Pensacola, which then collided with an SUV driven by 37-year-old Holly Birch of Pensacola. After the crash Harrison left his vehicle to check on the others as did a pedestrian – 34-year-old Dannah McCormick. Both were then struck by a car driven by 80-year-old Cecelia Mroz, from Arizona. McCormick was killed and Harrison critically injured. Tran and her three passengers suffered minor injuries.