Mary Ellen Mara-Christian is only five feet, five inches tall, weighing in at 115 pounds. She's looks small, but this week she proved she can take on a lot. Mara-Christian killed a 13-foot, six-inch, 1,025-pound alligator during South Carolina's alligator hunting season. How did she do it? In an exclusive interview on "The Early Show on Saturday Morning," Mara-Christian explained she was out on a boat on Lake Moultrie with her husband and a few friends when she hooked the alligator with her heavy-duty fishing pole. "We stuck him with a harpoon," she said. "We had two lines on him,...