Showing posts with label Doug Lyle. Show all posts
Showing posts with label Doug Lyle. Show all posts

Friday, April 8, 2011

Ways to Die: Hanging


I am pretty sure it's not often that you sit around and imagine what it's like to die by hanging, gunshot wounds, drowning, and all the other means to expire. But mystery writers and novelists have to consider these things for their own fictional world. So, who do you turn to for information? 

Well, a lot of Mystery Writers of America members look to Doug Lyle, MD for answers. You remember D.P. Lyle when we featured his book, Stress Fracture on Women In Crime Ink not too long ago? Today, we welcome him back as a guest editor to answer a question he received on his own blog, The Writer's Forensics Blog, and this particular query is about hanging. Here's Doug's answer to this question:

Question: What Happens When Someone Is Hanged?

Q.: I’ve got a couple of questions about hanging. I have a 140-pound man of slight build who has been hanged. His neck is not broken and thus he is strangling. His hands are bound. How long might he survive before death? Would he lose consciousness well before or shortly before death? If he is taken down before death, we would certainly see abrasion of the neck. What else would we see? If unconscious, would he revive quickly? Could his injuries be life-threatening? (I’m thinking of throat swelling here) I am looking at pre-modern society here. No ER or modern medicine. 

Doug Lyle: In hangings, death results from asphyxia, which is the reduction of oxygen to the brain. Asphyxia in hangings results from the compression of the airways and the carotid arteries (the arteries on either side of the neck that carry blood to the brain) by a noose or other ligature that is pulled tight by the body weight. Thus, the victim must be completely or partially suspended.

Though the airway can be compressed and breathing can be interrupted, the real cause of loss of consciousness and death in most hangings is compression of the carotid arteries, which blocks blood flow to the brain. 

Except for judicial (legally directed) hangings, fractures of the cervical vertebrae (spinal bones of the neck) are uncommon. The reason is that these fractures require that the body drop a sufficient distance to break them. How far is this? The answer depends upon several factors. Individuals who are obese, have small neck musculature, or who have arthritis of the cervical spine may suffer neck fractures quite easily. Just the opposite is true for muscular, thick-necked persons. In judicial hangings, these factors are considered in gauging the distance of the drop. Too little drop and the condemned person is strangled to death, too far and he could be decapitated.

The neck markings seen after hanging depends mainly on the nature of the noose used. Soft nooses such as sheets may leave little or no markings. Bruises and abrasions are not common with softer devices. In fact, if the victim uses a soft noose and if the body is discovered fairly quickly and cut down, the ME may not be able to find any marks at all. A rope or cord may leave a very deep, distinct furrow in the victim’s neck. The longer the body hangs, the deeper the furrow. Abrasions and contusions are more common with these types of nooses. Occasionally the furrow and any associated bruising may reveal the braid pattern of a rope or the link configuration of a chain.

In hangings, the furrow and the bruising will follow a typical course. The pattern is that of an inverted V. The furrow tends to be diagonal across the neck with its high end where the knot is located. The knot is usually to one side. This means that if the knot is to the victim’s left side, the furrow will be lower on the neck and much deeper on the right side and will angle upward toward the left ear. Near the knot, the furrow may shallow and disappear. This pattern is due to the body hanging by the “bottom” of the nose.

Okay, enough about hangings, let’s get to your situation. Since the asphyxia is due to compression of the arteries and not the prevention of breathing, loss of consciousness occurs very quickly, usually in a minute or less and maybe as short as 20 seconds. The brain needs a continuous supply of blood and when this is interrupted, consciousness is lost quickly. Death may take from one to five or six minutes.

If your victim is found within two to three minutes, he would be unconscious but could wake up fairly quickly—in a couple of minutes. Or not. Some people die in a minute while others can take many minutes. Go with a couple of minutes but not longer and you’ll be okay. He would probably have the typical V-shaped bruises on his neck and a furrow that would resolve over a half hour or so.

He could return completely to normal or be left with brain damage or even remain in a coma for hours, days, weeks, months, years, or forever. It all depends upon how long the brain was deprived of blood and luck. This varies from person to person.

D.P. Lyle, MD
Coming June 2011: HOT LIGHTS, COLD STEEL, a Dub Walker Thriller

Image Credits:
http://commons.wikimedia.org/wiki/File:Hanging.gif
Author's clipart.com account


Tuesday, April 13, 2010

Physician, Friend and Mystery Man, Doug Lyle


by Andrea Campbell

Doug Lyle is a colleague of mine through the Mystery Writers of America, and he is a friend. To celebrate the arrival of his new book, Stress Fracture, we decided an interview was in order. Doug teaches forensic science online classes for DeSales University's Masters of Criminal Justice program. He has an interesting Web site page called The Writer's Medical and Forensics Lab, and I find him an excellent writer and author.

Q.: Doug, for Women in Crime Ink readers who don’t know you, please give us a little about your background.

A.: I'm a Southerner, having grown up in Huntsville, Alabama, graduated from the University of Alabama for both college and medical school and then did my cardiology training at the Texas Heart Institute in Houston. I now practice cardiology in Orange County, California. I write both fiction and nonfiction, have won the Macavity Award, and been nominated for an Edgar Award. I also consult with the writers of many TV shows, including Law & Order, CSI: Miami, Diagnosis Murder, Monk, Judging Amy, Peacemakers, Cold Case, House, Medium, Women’s Murder Club, and 1-800-Missing.

Q.: You are considered an expert in forensic science. How do you use those skills?

A.: I don't work in the forensic field and do not consider myself an expert but more an interested party. Being a physician, the terminology and the science behind forensic science is not foreign to me, so it wasn’t difficult to educate myself in the field. Now I use it to translate this often difficult science into simple terms for writers and hopefully to help them use this information in their stories. So I'm more or less a translator for fiction writers.

Q.: What are you doing to stay abreast of today’s forensic science?

A.: I read anything and everything that has to do with the field. I stay on top of it through the many scientific blogs, scientific journals, and rummaging around the net. I will say that a lot of my research is stimulated by the questions I receive from writers who want to know some forensic detail for their story. I probably learn more from the questions that are asked than the questioner learns from my answers. I am constantly amazed at the creative mind of fiction writers and the wild scenarios and questions they come up with.

Q.: What do you think about the state of forensics today? Do you see progress being made? Are we staying ahead of the criminals?

A.: Like any science, forensic science progresses in fits and spurts. The hot topic of recent years has been DNA and there have been some incredible advances in this arena. With the new so-called "touch DNA" techniques, investigators are finding DNA samples in places they never looked before. A simple fingerprint will often contain the person's DNA because these prints are made up of oils and skin cells left behind when an object is touched. With the newer DNA testing techniques a single cell is enough for DNA profiling in many cases.

Q.: Thank you for the review copy of your latest book, Stress Fracture. Can you provide a brief book jacket explanation?

A.: Stress Fracture is the first in my new Dub Walker series. It’s set in Huntsville and revolves around the world of murder and forensic science. In the story, a series of brutal killings take place that are very confusing to Dub in that each killing suggests that the killer on one hand is cold and methodical while on the other is frenzied and out of control. It creates a difficult profiling situation and makes tracking the killer problematic. He leaves little evidence behind yet appears to be completely insane, a situation that the profilers call a "mixed presentation." Of course, it becomes personal when a close friend of Dub’s is murdered and both Dub and his ex-wife Claire McBride are threatened directly by the killer.

Q.: Your main character, Dub Walker, is a crime scene and evidence analyst. What is he responsible for? Are you are going to pepper all your stories with forensic science details?

A.: Dub almost made it through medical school but dropped out three months from the finish line when his sister was abducted. He was supposed to meet her at a certain place and at a certain time but was delayed. When he got there she was gone. Never seen again. This drove him into depression, which ultimately led to him joining the Marines where he was an MP and got his head screwed back on. After that, he worked at the Alabama Department of Forensic Science in Huntsville where he gained his expertise in forensic investigations. He also did a stint with the FBI's Behavioral Assessment Unit where he learned more about criminal behavior. He then became a writer and teacher on these subjects, which led to his being consulted on difficult cases around the country. He brings a broad spectrum of knowledge and experience to the cases and has a knack for thinking outside the box.

And yes, each story in the series relies heavily on forensic science. Stress Fracture deals with PTSD as well as criminal behavior and the second in the series, Hot Lights, Cold Steel, which is already completed and will be out in 2011, deals with robotic surgery. So each book contains not only forensic science but also medical science.

Q.: Would you care to share details about your writers' forensic blog?

A.: I started the blog in order to communicate with writers about forensic issues. It is meant primarily for writers though I have readers who cover a very broad spectrum, including police officers, attorneys, forensic experts, and many others. I try to take something interesting that I've seen in my net searches, or maybe stimulated by a question from a writer, or perhaps some crime story that appears in the papers or on television, and use that as a springboard to discuss some forensic technique. When I post things to my blog I always attempt to keep writers in mind and ask myself—What about this story might help a writer with something they're working on or perhaps generate a new story idea? And of course, I learn a lot doing it.

Q.: Is there anything else you would like to tell Women in Crime Ink readers?

A.: Those of you who write, keep writing. Those of you who read, keep reading. We writers love our readers.