18 May 1927 (+) is born in Fargo, United States.

31 July 1949 (-) raped and beaten to death Laura Showalter in Anchorage, United States.

5 August 1960 (x) is arrested on charges of burglary and assault in Duluth, United States.

20 November 1964 (x) is arrested on charges of burglary in Seattle, United States.

20 April 1965 (x) is sentenced to 15 years imprisonment for burglary in Walla Walla, United States.

14 April 1972 (x) marries Alice Johnson in Seattle, United States.

15 October 1972 (-) abducted and bludgeoned to death Leslie Brock in Bellingham, United States.

1 May 1973 (-) assaulted and hammered to death Kathy Sue Miller in Everett, United States.

28 June 1973 (x) attacked Marlys Townsend in Minneapolis, United States.

9 September 1973 (x) assaulted and raped with a hammer Jewry Billings in Minneapolis, United States.

10 August 1974 (-) beaten to death Eileen Marie Hunley in Zimmerman, United States.

8 September 1974 (x) fools 16-year-old June Lynch and 16-year-old Lisa King into getting into his car with a ruse about needing help to pick up a broken-down vehicle in Minneapolis, United States.

14 September 1974 (x) assaulted and raped with a hammer Gwen Burton in Minneapolis, United States.

18 September 1974 (x) 18-year-old Sally Versoi and 17-year-old Diane Flynn are picked up by Carignan in Minneapolis, United States.

20 September 1974 (-) beaten to death Kathy Schultz in Minneapolis, United States.

24 September 1974 (x) is arrested in Minneapolis, United States.

18 April 1975 (x) is found guilty on four counts of sodomy and indecent liberties in the attack of Jerri Billings in Minneapolis, United States.

5 May 1975 (x) is sentenced to 60 years imprisonment in Minneapolis, United States.

24 June 1976 (x) is sentenced to life-imprisonment in Minneapolis, United States.

22 September 1984 (x) is convicted to life imprisonment for the murder of Michelle Steel in St. Joseph, United States.