In ancient Rome, all the best stories have one thing in common—murder. Romulus killed Remus to found the city, Caesar was assassinated to save the Republic. Caligula was butchered in the theater, Claudius was poisoned at dinner, and Galba was beheaded in the Forum. In one 50-year period, 26 emperors were murdered. But what did killing mean in a city where gladiators fought to the death to sate a crowd? Emma Southon examines a trove of real-life homicides from history to explore how how perpetrator, victim, and the act itself were regarded by ordinary people.