The two men live in Longwood, FL, and Brian is a recent college graduate who has had kidney problems his whole life. His doctors told him last year that he needed a kidney transplant, so he began the testing process. Perhaps he should buy a lottery ticket once he gets out of the hospital, because he's on a lucky streak. The first person tested for a match was perfect and happened to be his dad. The first person that's tested turning out to be a perfect match doesn't usually happen, but since it did, these two will be able to celebrate many more Father's Days together.
Source : OrlandoSentinel.com article titled A Special Father's Day : Longwood Gives Son A Kidney