re: #76 Decatur Deb
The number of European royals who would have qualified for serial killers is pretty damn high, too. This is a nifty book on that subject, though it tends to focus more on the political killing than the “I feel like killing me some peasants” killing. amazon.com
Not to mention the ghoulish spectacle of public messy executions, which gave everyone a vicarious kill-thrill.