I remember reading about the comment as well, but thought it would be quicker to Google than dig through bookmarks. It took two searches, one general and one specific. Elapsed time: about three minutes.
http://en.wikipedia.org/wiki/David_KellyAt about 15:00, Kelly told his wife that he was going for a walk as he did every day. He appears to have gone directly to an area of woodlands known as Harrowdown Hill about a mile away from his home...
Concerns regarding official account
During the Hutton inquiry, a British ambassador called David Broucher reported a conversation with Dr Kelly at a Geneva meeting in February 2003, which he described as from "deep within the memory hole". Broucher related that Kelly said he had assured his Iraqi sources that there would be no war if they co-operated, and that a war would put him in an 'ambiguous' moral position. <6> Broucher had asked Kelly what would happen if Iraq were invaded, and Kelly had replied, 'I will probably be found dead in the woods.' Broucher then quoted from an email he had sent just after Kelly's death: 'I did not think much of this at the time, taking it to be a hint that the Iraqis might try to take revenge against him, something that did not seem at all fanciful then. I now see that he may have been thinking on rather different lines.'
Archive of documents and transcripts relating to the Hutton inquiry into the apparent suicide of David Kelly
http://www.guardian.co.uk/hutton/documents/0,,1021218,00.htmlSee index of inquiry proceedings, day 8 (pm), page 18.
As for the (eventually five) doctors who contested the findings publicly: Wikipedia cont.
Although suicide was officially accepted as the cause of death, some medical experts have raised doubts, suggesting that the evidence does not back this up. The most detailed objection was provided in a letter from three medical doctors published in The Guardian <7>, reinforced by support from two other senior physicians in a later letter to the Guardian <8>. These doctors argued that the autopsy finding of a transected ulnar artery could not have caused a degree of blood loss that would kill someone, particularly when outside in the cold (where vasoconstriction would slow blood loss). Further, this conflicted with the minimal amount of blood found at the scene. They also contended that the amount of co-proxamol found was only about a third of what would normally be fatal. Dr Rouse, a British epidemiologist wrote to the BMJ pointing out that the act of committing suicide by severing wrist arteries is an extremely rare occurrence in a 59 year old man with no previous psychiatric history <9>. Nobody else died from that cause during the year.
Imbedded direct links to letters published by The Guardian are included in the WikPed article.