EXACTLY what made Dr David Kelly’s life suddenly unbearable will be the focus of political recriminations for years to come. The pioneering weapons inspector who uncovered Saddam Hussein’s secret anthrax programme was incensed at his treatment by a committee of MPs and frustrated that his own evidence to them had been flawed. Dr Kelly apparently found it impossible to live with his inner torment. At 3pm on Thursday he left his house, saying he was going for a walk. Paul Weaver, a farmer, spotted the scientist on a footpath more than a mile from his home. The only oddity was...