A year ago today, the FBI suddenly shut down a remote mountaintop observatory with no explanation. The internet went wild with theories.

In Pittsburgh, the tow truck business is notoriously cutthroat. This winter, two rivals arrived at the same wreck and the feud crossed a line.

Did Maryon Cooper Hewitt want to suppress “bad genes” or steal her child’s inheritance? Their battle over genetics and motherhood riveted the nation in 1936.

How a brilliant scientist went from discovering a mother lode of treasure at the bottom of the sea to fleeing from authorities with suitcases full of cash.

When priceless texts began disappearing from a seventh-century hilltop abbey, the police were mystified. They were even more befuddled when they finally caught the culprit.

When they learned their fathers led the reign of kidnapping, torture and murder that tore Argentina apart, their first reaction was disbelief. Their next was to take action.

Fifty years ago, a left-wing radical planted bombs across New York, launching a desperate manhunt—and an explosive new strain of political extremism.

I was arrested at an anti-war protest, jumped bail and went on the run. That's when my story really began.

They seemed like fun-loving foreigners living it up in Taiwan. But below the surface was a gruesome story.