Scant information has been released after one of Colorado's reintroduced wolves died from a gunshot wound, raising suspicions ...

That change of plan raised serious questions for investigators ... that will be key to unlocking this mystery,' Robert Sumwalt, former chair of the U.S. National Transportation Safety Board ...

But in the days after William de Rothschild, 87, was found dead at his fire-damaged Laurel Canyon home last week, questions surfaced ... used the name is still a mystery." Indeed, there is no ...

BBC Radio's 20 Questions receives anonymous clues that connect to a series of murders. Reporters try and break the code before more deaths come to pass.

And the finding of Irvine's foot "could also raise some new questions: Did he fall off the ... individual who wanted to know the answer to the mystery: the first confirmed man to summit Everest ...