News of the World phone-hacking whistleblower found deadhttp://www.guardian.co.uk/media/2011/jul/18/news-of-the-world-sean-hoare
Hertfordshire police would not confirm his identity, but the force said in a statement: "At 10.40am today [Monday 18 July] police were called to Langley Road, Watford, following the concerns for the welfare of a man who lives at an address on the street. Upon police and ambulance arrival at a property, the body of a man was found. The man was pronounced dead at the scene shortly after.
"The death is currently being treated as unexplained, but not thought to be suspicious. Police investigations into this incident are ongoing."
Hoare first made his claims in a New York Times investigation into the phone-hacking allegations at the News of the World.