Unexpected slowdowns or spikes in this signal were often interpreted as knots in DNA. But now, a new study published Aug. 12 ...

Authorities in Missouri say DNA samples have solved a 1994 cold case, identifying a man's body found in the Mississippi River more than three decades ago.

A Pennsylvania man who went missing in the 1980s and whose body was found in 2019 along Interstate 75 has been identified, though police are still working to determine what happened so long ago.