I have heard my fair share of crime stories over the years and have shared most of them with you. Yeah, most of them might share some similar beats, but I can almost guarantee that this one is going to be a bit different. Why? Here, I will tell you about some juicy details provided by examiners who witnessed popular serial killers failing polygraph tests. Before we begin, I implore you to contact a private investigator in Shawnee, Oklahoma, if you notice any suspicious activity in your area. Doing so might save lives and keep potential serial killers off the streets.
Lie Detectors and Serial Killers
For as long as I can remember, authorities have used lie detector tests to determine whether someone is innocent. I first learned about lie detectors from some crime TV shows I used to watch religiously when I was younger. My curiosity about how polygraph tests worked and how authorities used them grew.
So, I decided to do a deep dive into the topic, which helped me discover some interesting cases. My research also showed that these tests are never 100 percent accurate, and that some people could even manipulate the results. Did some of the most popular serial killers lie their way through these tests and trick everyone? Well, let’s find out.
Guilty as Charged
The first case that I’d like to discuss here involves Joseph Cambron, who was in his early twenties when he murdered 12-year-old Ray Allen Etheridge through repeated stabbing. Polygraph tests found Joseph Cambron guilty, but unfortunately, these results aren’t admissible as evidence in court.
I would have been ranting and raving here if this murderer got away, but I am glad to tell you that won’t be the case. Some of the finest investigators confronted Cambron and eventually got him to confess, which led to his arrest. A professional polygraph examiner in OKC, OK, should be able to conduct a reliable lie detector test on potential criminals while following all guidelines to a T.
The Conviction of Chris Watts
People were distraught when they heard the news about the murder of Shanann, a pregnant woman, and her two daughters. The primary suspect of this crime was her husband, Chris Watts. Initially, Watts denied his involvement with the crime and even tried to get away by lying about how his wife fled with the children. Unfortunately for the husband, he couldn’t dig his way out of the mess, thanks to the lie detector test that indicated he was lying. While Watts still wouldn’t budge, he later confessed to the murders to his father, which eventually led to his conviction.
Guilty or Innocent?
Some people just don’t learn, do they? With so many people convicted for lying over the years, one would think criminals would change their ways. Well, Jeffrey MacDonald might have thought he could get away. The good news is that fate had other plans.
Authorities investigated Jeffrey after the brutal murder of his wife and two young daughters. The suspect was even bold enough to voluntarily appear for a polygraph test, thinking that he might ace it. The results, however, pointed towards Jeffery being the murderer. With polygraph test results being unreliable and inadmissible in court, there wasn’t enough evidence to land a conviction on Jeffrey MacDonald initially.
The killer tried to maintain his innocence by claiming that intruders might have murdered his family. The authorities weren’t buying that, which resulted in a legal battle that lasted for years. Fortunately, Jeffrey is now behind bars and still serving his sentence.
The Case of the Green River Killer
Gary Ridgway, aka The Green River Killer, is arguably the most notorious serial killer on this list, having murdered more than 48 women during his spree. Unlike most murderers, Gary actually passed his polygraph test during the murder investigation. However, the case was far from closed, and it eventually led to the Green River Killer confessing to his crimes.
Knowing that people like Gary Ridgway can trick polygraph tests sometimes keeps me up at night. It’s a big reason I tell people to get a reliable polygraph examiner in Edmond, Oklahoma, for a thorough and fair lie detector test.
Confession of a Millionaire
Adrian Prout lived a life that most people can only dream of. The millionaire thought that money could make all of his problems go away, but that wasn’t the case. Adrian’s fiancée suspected him of killing his late wife and asked him to undergo a lie detection test. Thinking that he might ace the test, Prout agreed, but the test results showed possible involvement.
Like the cold-hearted millionaire he was, Adrian confessed to his crimes, believing the statute of limitations had expired; it proved a grave error, as it hadn’t, leading to his imprisonment.
Polygraphs May Be Inadmissible, But They’re Important
Looking at all these cases, one thing is crystal clear: you simply cannot rely on lie detector test results. Even the best private investigator in Broken Bow, OK, will tell you that these results only tell a small part of a larger story. I always recommend consulting Private Investigators Oklahoma City to determine the best course of action for your specific situation. You can contact us at (405) 403-0106 or email Vivien@ojpslegal.com, and we will be glad to help.
