Chris Carroll, from McKinney, Texas, saw Callaway’s story on TV and said he knew immediately it was something he needed to be a part of. Carroll says he was moved by the story and the pictures of Callaway's children.
"When I saw Raleigh's story, saw pictures of the girls and everything, and it hit me," said Carroll. "That's what kind of surprised me a little bit, there was never a doubt. I mean, it's like if my own dad needed a kidney -- that's how strongly I felt."