. >> the victims were katy eastburn, age 32, kara, age 5, and erin age 3. >> after that homicide, atight, i could close my eyes and see the children. >> and her husband gary was an air force captain. he rushed back from training in alabama. >> it is hard to explain. you just stop. the world stops. >> when you looked into his eyes, there was a void there. it tears your heart out. but you have to gather yourself, because you have a job to do. we will find out who did this. >> there was evidence all over that house. they found head hair in ms. eastburn's bed. and they found a pubic hair at the scene of the rape. they found fingerprints a all over the house. they had bloody footprints. they had a semen sample. they were certain that physical evidence would lead them to whoever killed this family. >> after walking through the house, gary eastburn also provided a tantalizing lead. they were going to move to england when he finished train ing in alabama. the family had decided to sell the dog, so they put an ad out in the local fort bragg bee and katy eastburn wrote a letter to her husband