"Bloodstain Found in Kupaza's Apartment," www.channel13000.com, Feb 16, 2000.
Bill Tolhurst Enterprises, www.angelfire.com/ny4/bigT/
"Cement-Entombed Corpse Found in PA," Associated Press, Aug. 17, 2001.
Jones, Meg. "Rebuilding Victim's Face Key to Arrest in Killing," Milwaukee Journal Sentinel, Feb. 2, 2000.
Joyce Jonni, "The Importance of Foundation Work in Cadaver," www.jonnijoyce.com.
Rebman, Andrew, Edward David, and Marcella H. Sorg, Cadaver Dog Handbook, Boca Raton, FL: CRC Press, 2000.
Clede, Bill, "New Applications for Old Technologies," www.Clede.com/articles/police/scent.htm
"Cadaver Dogs," Unsolved Mysteries, July 11, 2001.
Tolhurst, William, and Lena Reed. Manhunter! Hounds of the Big T. Hound Dog Press, Payallup, WA, 1984.
Valdez, Al. "Classic Canines Capture Criminals," Police, Vol. 25, Number 5, May 2001.
Private interviews with Justin Spence and Sandra Anderson.