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Wreckage from a vehicle litters the median of Interstate-49 after an accident outside Opelousas, Louisiana, May 24, 2018. The vehicle hit a semitractor trailer going northbound. The driver, Jason Hesni, sustained life-threatening injuries. U.S. Air Force Chief Master Sgt. Shelley Cohen, 307th Bomb Wing command chief, happened upon the scene, administering first-aid and saving Hesni’s life. (courtesy photo)