Forensics For Dummies Updated 2nd Edition is now available.
Get it through your local Indie Bookstore or here:
Forensics For Dummies Updated 2nd Edition is now available.
Get it through your local Indie Bookstore or here:
Q: My villain is a cook and he wants to kill the hero by feeding him tainted food. I want to avoid using a detectable poison, so I thought a deliberately introduced food-borne pathogen, such as ptomaine, botulism, E.coli, or salmonella, or something like those, would do it. But how do I get the bacteria/germs/whatever in the food? What will it do to him? How long would it take him to die, and what steps could the hero take to make sure he survives? What could the villain do to make sure the hero dies?
E. Coli Growing on a Culture Plate
A: This scenario will work but there are a few problems with it. First of all, using bacteria for murder is extremely unpredictable and most killers prefer a more predictable method. Just because your villain feeds contaminated food to the victim it does not mean that he will die because contaminated food rarely kills people but rather merely makes them sick. Typically people survive these types of illness—but not always. The best way to assure, or at least increase the probability, that your victim would die is to prevent him from reaching medical care.
Infectious processes most often kill by two mechanisms. The first is that they alter the function of the infected organ. For example, pneumonia can kill by infecting the lungs and filling the air spaces with bacteria and liquids we call exudates. This is simply the body’s reaction to the infection. Like a weeping wound or one that forms pus. This is what happens in the lungs and if so it interferes with the exchange of oxygen and the victim can die because the lungs fail. An infection in the kidneys can do the same thing by causing kidney failure and infection in the gastrointestinal tract, which is what would most frequently happen with ingested bacteria, can lead to severe diarrhea and dehydration or in some cases or severe bleeding and death can follow from shock.
But the most treacherous thing associated with any of these infections is the passage of the bacteria from the infected organ into the bloodstream. We call this sepsis or septicemia, big words that mean infection in the blood stream. When this happens the infection spreads rapidly throughout the body and very quickly the victim can suffer from septic shock–low blood pressure and shock from bacteria in the blood stream. This can lead to death in short order.
So regardless of which bacterium you decide to use, it would need to be added to the food and the victim ingest it. This would make him ill with gastrointestinal symptoms such as nausea, vomiting, diarrhea, abdominal pain, and perhaps bleeding in either the diarrhea or the vomiting. If untreated such an infection could then spread to the bloodstream and be deadly. But the key here is that he must be prevented from reaching medical help. Otherwise he would be treated and survive. But untreated his chance of survival is dramatically reduced. So you need to figure a way to prevent him from reaching medical care once he developed symptoms.
As for what bacteria to use, both ptomaine and botulism would be very difficult to come by. They are rare and your cook would have no access to this type of organism. He could of course damage a can of some food product and leave it sitting in a warm environment and hope that the right bacteria grew but most likely it would not be the bacterium that causes botulism. That’s actually quite rare. So there would be no way for him to predict what organism would occur under that circumstance.
On the other hand, things such as E. coli, Salmonella, and Shigella are quite common causes of food-borne gastrointestinal illness. If your chef knew someone who was infected with one of these, perhaps from a recent trip to Mexico where these are not uncommonly encountered, he could then use this individual to supply the needed bacteria. How would he do this? The best way would be to obtain some stool from the infected individual. This could be from contaminated toilet paper or an un-flushed toilet. Gross but that’s the way it is. This could then be placed into some food product and allowed to grow, which he could simply do a closet at home. He could then add some of this bacterial soup to the food product and in this way introduce a large amount of bacteria to the victim. Even better would be if he could find a way to inject this intravenously into the victim but that’s not absolutely necessary.
Again, this would make the victim very ill with gastrointestinal symptoms. Then, as I said, you’ll need to devise some scenario that prevents him from reaching medical help and if so he could easily die from sepsis.
There is an excellent non-fiction book in which a murder is committed exactly like this. It involves the murder of Joan Robinson Hill by her husband Dr. John Hill. It took place in the 1960s in Houston Texas and is an incredible story. The book is titled Blood and Money and was written by Tommy Thompson. If you can a copy of this it might help. Dr. Hill apparently grew bacteria in petri dishes at home and infected cream puffs to kill his wife. He then admitted her to a small hospital in the outskirts of Houston and he managed her care, which amounted to preventing her from getting adequate treatment since he did not offer her the treatment she needed. It became a huge and convoluted case that did indeed involved blood and money.
Just got the new cover for Forensics For Dummies, 2nd Edition.
It will be released from Wiley on 2-29-16
Q: My question is if a female victim, age 17-18, had a penetrating wound to the far left side of the abdomen just below the ribs, extending 2-3 inches max into the body, what organs if any would be hit and would there be any internal bleeding (if so what major arteries/veins)? The weapon is a barbed crossbow bolt that prevents manual removal. And for the internal bleeding would cauterization be possible without lasting effects? Also, what would be the estimated recovery time for this injury (victim able to walk without assistance)?
Rachel from TN
A: There are many possibilities and in fact there are hundreds of possible outcomes here. In the left upper quadrant of the abdomen the most likely structures that would be impacted would be the spleen, the pancreas, and the bowel. It is possible that an object that only embedded two or 3 inches into the body would not strike any organs but would rather be more or less a flesh wound. In this case she would be fine and able to do anything with some pain in the area of course. The only real danger here would be an infection in the wound but this would take many days to develop and many more days to become a true medical problem.
On the other hand the bolt could penetrate into the abdomen and this would be much more painful and there could be some bleeding within the abdomen which would cause a more or less diffuse pain throughout the abdomen which would be worse with movement, running, coughing, and almost any other activity. This pain would be sharp rather than a dull ache. Once again her life would not be in danger unless a secondary infection followed and she should be able to do most things though again with considerable discomfort.
If the spleen were punctured, they would be a great deal of internal bleeding and it could even be enough to cause her to slip into shock and die. Or she could simply lose a great deal of blood can be very weak and short of breath with
any activity but survived. Here the bleeding could stop as the wound in the spleen clotted and she could recover without any major intervention. Again if no infection followed.
If she punctured a pancreas then the pancreatic digestive juices would be released in the abdomen and cause what we call peritonitis – the inflammation of the lining of the abdomen. This would be extremely painful with almost any movement are activity and this discomfort would be spread throughout the abdomen. Here a secondary infection is
very high. Would she be able to do most things? Probably but this would be even more painful than the injuries described above.
If the bolt penetrated a bowel then the leakage of bowel contents in the abdomen would cause an infected peritonitis. This would be extremely painful and deadly without fairly quick surgical intervention. The bowel contents are loaded with nasty bacteria and once they entered the abdominal cavity they would begin to grow and inflame the peritoneum,
causing a severe infectious peritonitis. Here the pain would be worse but she could still move around and do things if she were tough. Within a couple of days the infection would be severe and she would have high fevers, chills, severe abdominal pain, and would ultimately slip in the shock and die from what we call septicemia – an infection in the bloodstream.
Cautery is simply the burning of the tissues and really has no place here as it causes more damage than help. The reason is that with a bolt such as this weapon there would be very little external bleeding in the cautery he could only be used to control that. It could do nothing for the internal bleeding. To control any external bleeding simply applying pressure with a towel, the piece of clothing, wadded up paper, or anything she had handy would stop the external bleeding.
You can’t think about it.
You just have to do it.
You said you were gonna do it.
Like I don’t get why you aren’t.
So texted Michelle Carter to Conrad Roy, her 18-year-old boyfriend. And there were many other texts to follow. She goaded him to commit suicide, or at least that’s what prosecutors are alleging. And now she faces trial on an involuntary manslaughter charge. This will be an interesting trial particularly in regards to who is responsible for Conrad Roy’s death. There’s no doubt it was by his own hand, but is Michelle Carter culpable because she encouraged him to commit the act?
But this isn’t exactly new. In 1816, long before there was texting, George Bowen was charged with “murder by counseling.” It seems he was an inmate and convinced Jonathan Jewett, a convicted murderer who occupied the adjacent cell adjacent, to hang himself. Apparently Jewett did and Bowen was charged with encouraging his suicide.
So it seems there is nothing new after all.
Bad air will kill you. One form of bad air is Sewer Gas. It’s a combination of hydrogen sulfide, methane, ammonia, and carbon dioxide. If you enter a sewer or manure pit or some area where these gases are concentrated, you can be a goner is short order. Breathing this combination of gases can kill, and can do so quickly.
This is what happened to Iowa hog farmers Gene and Austin Opheim. Austin went into the manure pit to salvage a piece of equipment that had fallen in, but he was quickly overcome by the gas. HIs father, Gene followed, trying to save his son, but he too fell victim to this treacherous gas.
FROM HOWDUNNIT: FORENSICS:
Hydrogen sulfide is a byproduct of fermentation and is often found in sewers and cesspools. The combination of the two toxic gases hydrogen sulfide and carbon monoxide and the suffocating gas methane is called sewer gas. When inhaled or ingested, hydrogen sulfide converts oxyhemoglobin (hemoglobin rich in oxygen) into methemoglobin, which does not release oxygen to the tissues, thus effectively suffocating the cells of the body. Methemoglobin imparts a dark purple color to the blood, which can be seen at autopsy, where the ME is also likely to fi nd high levels of sulfide in the blood of sewer gas victims. These deaths are almost always accidental and occur when the victim enters an area rich in sewer gas.
Q: I’m wanting the victim in my next mystery novel to be murdered with a crochet hook. The attacker and victim would be facing each other. The hook would be grabbed off a table and could be either hook end out the thumb side of the hand or out the pinky side of the hand (depending on what you would determine to be the easiest for delivering a fatal blow). It is an impulsive act. The victim is a 5ft. 11in., 157lb. female. Murderer is a 6ft. 1in., 298lb. male. He is a chef.
What would be the most likely spots for inflicting a fatal wound? Would the hook need to be removed (the victim bleeds out)? Can the hook be left in and the wound still fatal?
The hook is a size F 3.75mm crochet hook made of Brazilian bloodwood by the Furls Fiberarts company. I know the different woods they use have different strengths as some do not come in the smaller diameter sizes. (For example: the olivewood hooks start at 4.00mm while the blackwood starts at 3.25mm.)
Pearl R. Meaker, Lincoln, IL.
A: Since this style of hook is made of wood rather than metal, the attack would have to be to a relatively “soft” area. Not likely this could penetrate the chest and reach the heart or get thru the skull without breaking or shattering. But grabbing the thick end and using the pointed (hooked) end as the weapon could prove deadly.
Two areas could work:
The eye–the skull behind the eye is thin and fairly easily penetrated. So a stab to either eye could reach the brain cavity and cause bleeding into and around the brain that could prove deadly. Here there would be some external bleeding from the eye wound but most would be internal within the skull. Here it makes little difference whether the
device is removed or left in place after the attack.
The carotid arteries—there are 2 carotid arteries–one on each side of the neck in the soft area on either side of the trachea–windpipe. This device could easily penetrate one of them. These arteries supply 90% of the blood to the brain. If punctured, the blood would spurt out in great pulses. Here it would be best if the device were yanked back
out after the stab so the blood would have a clear path.
In either case, the victim could die in a couple of minutes or, in the eye stabbing scenario, it could take some time—even 30 to 90 minutes or longer. Anything is possible.