DEL MAR (CBSLA.com) — A former mayor of Del Mar was killed on Friday when he was hit by an Amtrak train as he attempted to save his dog from the tracks. The 75-year-old man, whose name has not been released, was reportedly walking his Labrador Retriever off-leash on a coastal bluff near the tracks, according to San Diego Sheriff’s deputies. Witnesses suggest the dog may have been startled when the train’s engineer sounded his horn, which resulted in the animal panicking and running onto the tracks. The man was struck by the train as he leaned over the tracks...