Crow, Alan and Peter Samson. "Bible John: Hunt for a Killer." First Press Publishing Limited, Glasgow. 1997.
House, Jack. "Square Mile of Murder." Black and White Publishing, Edinburgh. 2002.
Skelton, Douglas. "Blood on the Thistle." Mainstream Publishing Company, Edinburgh. 1992.
Various articles from the newspapers: Daily Record (Glasgow), The Daily Mail (London), New York Daily News, The Herald (Glasgow), and the 7-Jun-2005 issue of The Evening Times (Glasgow).