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Summary Of The Chapter 'Molecules Of Murder'

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Molecules of Murder Summary 5

Chapter 9 Summary: Chapter 9 of Molecules of Murder focuses on the molecule called Paraquat, which is most commonly use as a weed killer. Paraquat is basically a highly concentrated version of dichloride, which is very common and can be seen used in farms all across the world. Due to modern safety measures, it is now almost impossible to kill someone using Paraquat, because various different chemicals are mixed in with this poison to rid the negative effects. But when Paraquat first came to use in the 60s, these chemicals were not added, meaning that anyone with access to the commonly used weed killer could easily murder someone or commit suicide. During the time, it was hard to diagnose someone who died of Paraquat poisoning, which made the poison more …show more content…
Paraquat targets specific enzymes and deactivates them, which in turn kills plants effectively because it alters the way they react to light and oxygen. When used on humans, Paraquat affects the respiratory system, which hinders the person’s ability to breathe and yields death within a few hours. In this chapter, two main cases of Paraquat murders are discussed. The first was Steven Catlin, who used the poison to murder many of his wives and also his parents. The second case is the murder of Michael Barber, who was murdered by his then wife Susan Barber. Michael Barber, who returned home unexcitingly early due to bad weather, caught his wife cheating with another man. He reacted with violence towards her wife’s lover and Susan Barber decided to get back at him by poisoning him with Paraquat in his gravy. Luckily, she didn’t get away with

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