Burdened by guilt over her knowledge surrounding the case, Marla Cooper came forward earlier this year, claiming she had a 40-year-old family secret protecting her uncle, a man named Lynn Doyle Cooper. Marla Cooper said she was eight years old when her uncle, whom she called LD Cooper, came to her home, badly injured, for Thanksgiving in 1971 - the day after the infamous incident. He claimed his injuries were the result of a car crash. Later, she said, her parents came to believe that L.D. Cooper was the hijacker. Mrs Cooper never saw her uncle again after that day...