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 conducted hundreds of death investigations, including a great number of homicide cases.  Climbing through the ranks, he eventually became the Chief of Detectives.    

He has a degree in Law Enforcement Administration, along 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 ten 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 the country of Austria.  He has conducted forensic hypnotic interviews for numerous 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.  

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 titles, one super sectional title and a trip to the final four in Missouri High School State Basketball playoffs with a fourth in the state.

After coaching for four years, Terry took a position as an Area General Manager for the Simon Property Group. As AGM 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 beautiful acres.

He 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.

Terry has two movie acting credits as an actor by the Internet Movie Data Base (IMDb).              He has credited roles 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 his 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. 

Presently, Terry L. Castleman is the author of fiction, non-fiction, children’s books and a medico-legal textbook.  He is a film maker and an award-winning screenplay writer.

Terry took on the role of film maker two years ago.  He has written, directed, filmed, edited, produced the music soundtrack, and created all the special effects for short films. His most recent project: IT MATTERS NOT is on Terry’s Facebook page.

Terry is also a member of the Central Illinois Film Commission.