Mark Davis and Sammy Davis Jr.
There is a saying that “blood is thicker than water.” However, this saying proves wrong in the case of Mark Davis and Sammy Davis Jr. For all of his life, the former had believed that the latter was his actual biological father. This belief got stronger when the older Davis had said that Mark was his son while the former was battling with an illness. Thus prompting Mark and her sister Tracey to take a DNA test immediately. The test revealed a truth that was heart-breaking for Mark.
According to the results, he has no relation with Tracey and, by extension, to Sammy. To make the long story short, Mark was adopted. Amidst all this, however, there was still a happy ending. Tracey herself says that the DNA test results will not change, but she will still consider Mark as her real brother. Only time will tell if Mark will ever find his true parents.