5 ideas
Any event can be grasped by two handles: the moral one, which asks whether it should have happened, and the aesthetic one, which asks how well it was done. Once a murder is complete and past preventing, the moral handle has nothing left to act on, so the observer may legitimately switch to judging it as a performance. The satire works by treating that switch as licit, which exposes how readily audiences already make it.
De Quincey reverses the moralist's descending chain: if a man indulges in murder, he soon thinks little of robbing, then of drinking and Sabbath-breaking, and from that to incivility and procrastination. Placing the gravest crime at the start and petty manners at the end mocks moral panics that rank all transgressions on one ladder. It also exposes how social propriety can come to feel weightier than violence.
The club judges murders the way critics judge paintings. The victim should be a healthy, private, good person, so that the killing arouses real pity. The act should be done by stealth, in darkness, with design and composition rather than crude butchery. Applying formal standards of 'grouping, light and shade' to killing shows how aesthetic vocabulary can launder horror into taste.
In December 1811, Timothy Marr, his wife, their infant son and his apprentice were bludgeoned to death in their shop at 29 Ratcliff Highway. The servant Margaret Jewell, out buying oysters, returned to knock at the door while the killer was still inside. Twelve days later the Williamson household at the King's Arms in New Gravel Lane was slaughtered, and a lodger escaped by knotted sheets. The suspect, John Williams, hanged himself in prison before trial; his body was paraded through the district and buried at a crossroads with a stake through it.
Treating the killer as a creator whose work has style, ambition and signature shifts attention from the victim's suffering to the perpetrator's craft and the audience's thrill. This vantage produces suspense built from the murderer's viewpoint and the interval of dread, such as a knock at a door with the killer behind it. It anticipates the true-crime and detective genres, which run on the same fascination with the killer's craft.