How 2 cops learned they were dad and son

How 2 cops learned they were dad and son: "Police detective Clay Hamilton has a 12-year-old boy, and he always suspected that he had another, much older son out in the world somewhere. But to find out that long-lost son was working alongside him was a surprise for the ages.
Hamilton and his 37-year-old son Chris appeared live on TODAY Friday, relating their amazing tale of how the pair found each other against long odds. Also on hand was their boss, Petersburg, Va., Police Chief John Dixon, who played a major role in uniting the father and son."