A 22-year-old man was killed in a hit-and-run crash on the 5 Freeway in Castaic, California, after pulling over to fix a flat tire. The victim was hit by a tractor-trailer while repairing the rear driver-side flat. The California Highway Patrol is investigating the accident as a hit and is working to identify the truck involved and determine if the big rig may have had Amazon markings. The accident occurred shortly after 11 p.m. on the shoulder of the freeway.