n the mid-1980s, tragedy struck two villages in Leicestershire, England. In two separate instances, three years apart, two teenage girls were raped and murdered on their way home from school. On ...

DNA. It's what makes you unique. Unless you have an identical twin, your DNA is different from that of every other person in the world. And that's what makes DNA fingerprinting possible. Experts can ...

Investigators are analyzing DNA evidence from the home of missing 84-year-old Nancy Guthrie. Previous DNA testing on gloves found two miles away did not produce a match in the FBI's national database.

Cancer genomes are the result of diverse mutation processes that have often accumulated over decades. Scientists have analyzed the molecular evolution of tumors after exposure to mutagenic chemicals.