Monday, April 2, 2012

Chapter 8: Cyanide and the Death on the Nile


The murder in the chapter I read was the case of Cheryl Lewis. Her boyfriend at the time, Frederick Allan, killed her by using cyanide. Allan had been married and divorced twice before he met Cheryl. Allan and Cheryl decided to go on a holiday vacation in Egypt and on their last night, Allan poured her a gin and tonic, in which he added cyanide and within minutes she was in pain. In order to make it seem like Allan actually cared about Cheryl he ran to the receptionists’ desk in the hotel to get help. They got the doctor to come and once he realized that it was too late for him to help her, they called an ambulance and she was pronounced dead. Her skin had a little pigment of blue to it and Cheryl’s parents issued an autopsy to find out the exact cause of her death. The only symptom that Cheryl actually showed was an inflamed stomach by some corrosive agent. This was weird because she didn’t have the same inflammation in her mouth. This murder was very complicated because cyanide disappears from the body after death, making it hard to detect what her actual cause of death was. Because cyanide exists in cigarettes and Cheryl was a smoker, Allan could just blame the cyanide in her body from that.

Allan was so soul less that he actually changed Cheryl’s will in order to benefit himself and hopefully inherit everything she had, which is a lot considering she had a lot of money. In order to cover his butt he reported that Cheryl’s Mercedes had been stolen.  When the police found the car they found two gold rings and bracelets and also four pieces of sodium cyanide, which looked tampered with because obviously Allan used them. With the will, Allan would inherit 450 000. Cheryl’s new will (that Allan made) was dated 1993 and Allan made a huge mistake by spelling Cheryl’s middle name Leslie when it is actually spelt Lesley. When interviewed, Allan changed his story multiple times in order to make his story seem true. He said she had a heroin overdose and that she was an addict, then he said he was framed by agents employed in the arms trade, and then he said he was framed by Cheryl’s ex-husband.

Obviously Allan was found guilty and was sentenced to life in prison with a strong recommendation that he remained in prison for a long time.

Another incident in which cyanide was used for murder was a Tylenol case. There was no rhyme or reason to it and they don’t even know what the person’s name was, but he purchased several bottles of Tylenol and replaced its contents with cyanide and then replaced the bottles on the shelves of stores. Many deaths followed this action. The bottles were placed on the shelves at the Arlington Heights and there was a 12 year old, a 27 year old, and a 25 year old that died from taking the Tylenol. There were also several more deaths in the Chicago area, where a man named Michael Shaffer finally looked at the capsules and found that some of the pills contained potassium cyanide.

They had two suspects and the first one could not have been linked to the murders, but he was caught with firearms and was sent to jail, how unfortunate. The second suspect was arrested but for fraud, not the Tylenol case. Four months after this incident there was another murder, which resulted in a second recall. A woman named Stella had changed the capsules in an Excedrin bottle to kill her husband, and like the woman that she is, she did it for money. She had taken out three life insurances for a total of $71 000 and then another $100 000 if it was proven to be accidental. She was eventually found guilty and sentenced to 90 years in prison.

“Every month the chemical industry manufactures enough hydrogen cyanide to kill every person on the planet” (1). Cyanide is toxic because it binds to the iron atom present in the active site of an enzyme, which happens in the cell mitochondria. The enzyme is known as cytochrome oxidase and it catalyzes the final stage of the oxidation of glucose by oxygen, making it essential for life (1). It is also what is known as an irreversible enzyme inhibitor, meaning once it binds to an iron atom, it cannot be removed unless by a chemical attack. When this happens, depending on how much cyanide was taken in, the person can acquire a headache, nausea, and/or eye and skin irritation (2). Symptoms like these occur based on how much cyanide is taken in; 10 ppm is a normal amount, 150 ppm for 30 minutes can endanger someone’s life and then 300 ppm is almost always death. Cyanide is very dangerous because it is one of the fastest acting of all poisons.

Cyanides are natural chemicals and the most deadly of all the cyanides is Hydrogen cyanide. Hydrogen cyanide can be deadly by just breathing it in. This type of cyanide could have been involved with the creation of life because in the 50s Miller and Urey performed an experiment to see how life actually started and in doing so, their results contained hydrogen cyanide, which later reacted and turned into more complex molecules. All cyanide ions form strong bonds with metals. This is because they form pi bonds and have negative charges.

Cyanide is formed by carbons and nitrogens being combined by a triple bond. This creates organic compounds known as nitriles. Its acidity is weak when dissolved in water. Cyanides are used in different products, such as cosmetics fire retardants, dyes, paints, different foods, plants, cigarettes, plastics and textiles (3). Adiponitrile is used to make nylon (polymer). About 15% of hydrogen cyanide is manufactured into sodium cyanide. Cyanide loses its toxicity when it forms a bond with a carbon atom in a larger molecule.

Cyanide is made by bacteria, fungi, algae, insects and plants (3). There are a couple different ways to treat cyanide exposure. Hydroxycobalamine is able to bind rapidly to the cyanide group, which is used in France a lot (1). 4-dimethylaminophenol acts more rapidly and has a lower residual toxicity. Kelocyanor uses cobalt to pick up the cyanide.

There are ways to protect yourself from cyanide even though it seems like ones it hits you its almost inevitable that you’re going to die. You can take off all your clothes and wash your entire body if you think you have been exposed and you can also leave a building immediately if you think there is cyanide in the air (3). It has also been said that sugar can protect a person from cyanide poisoning in order to form less toxic compounds.




 








1. Molecules of Murder book
2. http://emergency.cdc.gov/agent/cyanide/basics/facts.asp
3. http://www.epa.gov/ttn/atw/hlthef/cyanide.html




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