"The saddest part about this is that you've got two young men whose lives are gone, and there's nobody around that can tell us why it happened," said Des Moines police Sgt. Paul Parizek.

OJ Simpson's 1995 double murder case has been called the trial of the century, due in large part to the DNA evidence found at ...

Peter Bon had a charm, a doctorate on his CV and experience of disasters, yet one slip began to unravel an extraordinary ...

Scientists have long believed they understood how life’s genetic code evolved, but new research upends that assumption. By ...