Wilf Gregg (1931-2008)

[Michael Rhodes]

Wilfred Gregg, writer and collector: born Sunderland 7 August 1931;
married 1955 Joy Staines (died 2002); died 15 June 2008.

http://www.independent.co.uk/news/obituaries/wilf-gregg-collector-of-crime-books-900670.html

Wilf Gregg began collecting books on crime with the purchase of a copy
of the trial of the Arran murderer John Watson Laurie in the Notable
British Trial series and it was through his extensive collection of
crime books, which included a rare set of this series, that he wrote,
with Brian Lane, the enormously successful The Encyclopedia of Serial
Killers (1992). In it they defined a serial killer as "one who kills
three or more people with sufficient time intervals between each
killings for a cooling-off period". He also co-wrote The Encyclopedia
of Mass Murder (1994).