Although DNA evidence collected in the Nancy Guthrie investigation has yet to yield matches, law enforcement is still bracing for results that could expose cracks in the southern Arizona case ...

An expert on genetic genealogy has said that DNA collected from Nancy Guthrie’s property will help law enforcement find the person responsible for the disappearance of the 84-year-old mother of Today ...

Researchers have uncovered the enzyme behind chromothripsis, a chaotic chromosome-shattering event seen in about one in four cancers. The enzyme, N4BP2, breaks apart DNA trapped in tiny cellular ...

An expert said lab analysis of gloves found near Nancy Guthrie’s home could produce results within days. By Audra D. S. Burch As the Nancy Guthrie abduction case stretches into a third week, ...

A groundbreaking project is piecing together Leonardo da Vinci’s genetic profile by tracing his lineage across 21 generations and comparing DNA from living descendants with remains in a Da Vinci ...