The world’s oldest conjoined twins have died at age 68. Ronnie and Donnie Galyon lived their whole lives face-to-face, joined at the sternum. They shared a lower digestive tract, but each brother had his own heart, stomach, and legs. They were treated like celebrities in their home of Dayton, Ohio. Inside Edition was there with the twins when they celebrated their 61st birthday, and also when they attended a Dallas Cowboys football game - a dream come true for both of them.