HOUSTON -- Randy Creech has two framed photos on top of his home office desk in Humble. One picture is of him with his seven grandsons.  The other is a smaller photo of a 19-year-old man he never even met.  His name is Aaron Stith. Creech keeps the photograph because, for the last 22 years, Stith’s heart has been keeping him alive. “He did something really good for me,” said Creech.  "I sort of ...