Author’s Bio



Terry L. Castleman is a Lieutenant (Retired) from the Sangamon County Sheriff’s Department, Springfield, Illinois with twenty-five years of service.  For twenty of those years, Terry was assigned to the Criminal Investigation Bureau where he eventually became Chief of Detectives, where he conducted hundreds of death investigations, including numerous murder cases.   

He has a degree in Law Enforcement Administration, with two years of college coursework in Psychology.  He attended Lincoln Land Community College and the University of Illinois.  Terry has also completed numerous courses (240 hours) in the Master’s Program, offered by the prestigious Department of Pathology, St. Louis University School of Medicine in St. Louis, Missouri.  An instructor and lecturer, for over fifteen years, he has presented classes and lectures to thousands of fellow police officers, prosecutors, coroners and pathologists across the country.  Lt. Castleman has consulted on numerous death investigations and homicide cases across the United States and as far away as Austria.  He has conducted forensic hypnotic interviews for law enforcement agencies throughout the United States.  

Lt. Castleman is a past member of the Illinois Police Association, the Michigan Society of Forensic and Investigative Hypnosis, the International Society of Forensic and Investigative Hypnosis, the Midwest Homicide Investigators Association, the American Society of Law Enforcement Trainers, the Illinois Coroners and Medical Examiners Association, the International Association of Bloodstain Pattern Analysts and past President and member of the Fraternal Order of Police. Member of the Central Illinois Film Commission.

Terry has appeared in two major case film documentaries.  A&E Investigative Reports, Cold Case Files, about one of the longest unsolved murders of a police officer in this country was shown on A&E television.  Lt. Castleman’s book,  Justice for the Badge is about that murder investigation.  The manuscript was written from first hand knowledge and with the use of actual police reports and official court certified transcripts.

 He also appeared in the Lynch Law Production of a Jim Conover Documentary, Freight Train Slayer of Innocence.  The movie is based on Mr. Conover’s book, Slayer of Innocence.  The book chronicles the investigation of a serial killer of young boys back in the 1970’s.  Terry worked very closely with Jim Conover and others in that investigation. 

Terry has been actively involved in fund raising for both Make -A Wish of Illinois and the Dream Factory of Central Missouri.  He has sponsored and organized numerous fund raising events, raising thousands of dollars  for both organizations.

After retirement, for four years, Lt. Castleman was a substitute teacher and a High School Asst. Boy’s Varsity Basketball Coach in Laquey, Missouri from 2007-2011. The “Hornets” went 91-27 during those four years.  the last three years the Laquey team went 77-14, winning three consecutive conference titles (24-0), two  district championships, two sectional title, one super sectional title and a trip to the final four in Missouri High School State Basketball playoffs with a fourth in the state.   

For fours years Terry was an Area General Manager for the Simon Property Group where he managed two shopping malls. One mall, Osage Beach Premium Outlets was the largest mall of its’ kind in the State of Missouri. Located in beautiful Lake of the Ozarks, the Center had 110 stores and sat on 62 acres.

Presently: Terry L. Castleman:
                 Fiction and Nonfiction
  Children’s Book
Death Investigation Textbook
           Movie Actor (2 IMDb)
           Award Winning Screenplay Writer 
Film Maker

 Current Books

by Terry L. Castleman:

Death Investigation: A Handbook For Police Officers (out of print)

Charles C. Thomas, Publisher LTD. Springfield, Illinois

The Taylor Stories  –  Children’s Book (limited)

Peach Dog Productions

This book includes four stories;

The Stolen Bicycle 

Chace Runs Away

Jim is Accused of Stealing

 My New Friend

Nonfiction – True Crime 

Destiny Turns Deadly: A Memoir

Peach Dog Productions

Forward by: By Sheriff Jack Campbell

Sangamon County, Illinois Sheriff’s Department

Edited by: Deb Staton Bailey

Justice for the Badge

Peach Dog Productions

Forward by: J. William Roberts

Former States Attorney and Special Prosecutor

Sangamon, County, Illinois States Attorney’s Office

Edited by: Venetia Weiler Schnapp


Murder in Mr. Lincoln’s Hometown

Peach Dog Productions: Second Edition

Edited by: Venetia Weiler Schnapp



Screenplay For:


Written by:

Jim Conover     Terry L. Castleman     Bill Homel


Screenplay For:


Written by:

Jim Conover     Terry L Castleman     Bill Homel