23 November 1945 (+) is born in Fraserburgh, United Kingdom.

16 June 1976 (x) has a gallstone removed by Dr. Kirk in London, United Kingdom.

30 December 1978 (-) strangled and drowned Stephen Holmes in London, United Kingdom.

11 August 1979 (x) burns the remains of Stephen Holmes, murdered on 30 December 1978, in his back garden in London, United Kingdom.

11 October 1979 (x) attempts to murder Andrew Ho, a student from Hong Kong in London, United Kingdom.

3 December 1979 (-) strangled Kenneth Ockendon in London, United Kingdom.

17 May 1980 (-) drowned in the kitchen sink Martyn Duffey in London, United Kingdom.

10 November 1980 (x) attacked Douglas Stewart in London, United Kingdom.

12 January 1981 (x) calls in sick at work to dissect two bodies of recent murder victims in London, United Kingdom.

18 September 1981 (-) strangled Malcolm Barlow in London, United Kingdom.

4 October 1981 (x) burns the dissected remains of five murder victims on a bonfire at the rear of his house in London, United Kingdom.

5 October 1981 (x) moves into his new apartment in London, United Kingdom.

23 November 1981 (x) attacked Paul Nobbs in London, United Kingdom.

28 December 1982 (x) attacked Trevor Simpson in London, United Kingdom.

31 December 1982 (x) attacked Toshimitsu Ozawa in London, United Kingdom.

26 January 1983 (-) strangled Stephen Sinclair Guild in London, United Kingdom.

8 February 1983 (x) is arrested after neighbours complained about a blocked drain in London, United Kingdom.

24 October 1983 (x) Start of the trial against Nilsen in London, United Kingdom.

4 November 1983 (x) starts his life sentence as 'Prisoner B62006' in London, United Kingdom.

21 December 1983 (x) is slashed across the cheek with razor by 21-year-old Albert Moffat in London, United Kingdom.

25 December 1998 (x) is found drunk in his cell in March, United Kingdom.

12 May 2018 (-) dies of natural causes in Full Sutton, United Kingdom.