In a Quebec courtroom last October, Sylvie Desjardins delivered a message to her daughter's killer that was 30 years in the ...

A father in Ohio reunited with his son, whom he never knew he had, after an Ancestry.com match. Calvin Cooper, 71, and Tim ...

Scientists used mtDNA to confirm what many researchers had long suspected: the Chinese “dragon man” Harbin skull belonged to ...

Human evolution’s biggest mystery, which emerged 15 years ago from a 60,000-year-old pinkie finger bone, finally started to ...

John was abandoned as a newborn and grew up with no knowledge of where he came from. Then one Christmas that changed.

A California woman has been charged with murder after the remains of her missing 9-year-old daughter were found in Utah, ...

Experts caution those using these services to be careful, as you may not always get what you want from biological relatives.

Most people take a 23andMe or AncestryDNA test for fun. Maybe you want to confirm an Irish ancestry or learn something about your health. Well, that’s what you think. What you don’t expect is a ...

A California murder went unsolved for nearly 30 years, until one DNA match cracked the decades-old case. You can also get more behind-the-scenes of each week's episode by listening to "20/20: The ...

PHOENIX - It has been just over 10 years since a woman was found dead by her boyfriend at her Scottsdale home, and on Nov. 12, trial began for Ian Mitcham, the man who police say murdered Allison ...