I love locked-room mysteries -- the seemingly impossible murders that you usually only find in Agatha Christie novels. The case of Hugues de la Plaza, though, is very real.
De la Plaza, a man who held French and U.S. citizenship, was found stabbed to death in his locked apartment in San Francisco. The authorities decided, somehow, that de la Plaza was a suicide -- even though there wasn't even a bloody knife or suicide note in the apartment. The dead man's friends and family were outraged, and they convinced the French government to investigate.
Now? The French have released their theory: Hugues de la Plaza was stabbed in the street, based on blood outside the building, but managed to get inside and lock the door. He passed out before he could call 911. Pretty logical. You wouldn't think you'd need to Hercule Poirot to solve this one. Then there's this from the dead man's father:
He said he found it "appalling" that it had taken French action for police in "one of the richest countries in the world, and one of the riches cities in that country," to investigate the case properly.