The Manhattan district attorney has closed the well-publicized investigation of the handling of the $300 million fortune of reclusive heiress Huguette Clark - without charging anyone with a crime.

An investigation by msnbc.com shows that the CDC routinely takes as long as a month - and sometimes as long as nine months - to visit the scene of firefighter deaths.

William Andrews Clark was caught in a bribery scandal during a campaign for the U.S. Senate - he was said to describe the Montana legislators this way: 'I never bought a man who wasn't for sale.'

intensely partisan Democratic district attorney.

Many police departments still use DNA evidence the way they have used fingerprints and tire tracks: to determine whether a suspect committed the crime.

The main threads running through the lives of W. A. Clark and his daughter Huguette include the costs of ambition, the burdens of inherited wealth, the fragility of reputation, the folly of judging someone's life from the outside, and the tension between engaging with the world, with all its risks, and keeping a safe distance from danger.