What's the connection between the number 13 and Jack the Ripper? Why is the number 23 of note in the assassination of Julius Caesar? And what is so puzzling about the number 340 in the chilling case of the Zodiac killer? The answers to all these questions and many more are revealed in this unique, number crunching history of the ultimate crime. Packed with 100 entries ranging from 1 to 1 billion, Murder by Numbers tells the story of murder in an entirely new way – through the key digits involved. Discover why the length of a bath was critical to convicting a killer, how the weight of a trunk helped police crack a case and why a fake house number was central to a seemingly unfathomable murder mystery. Full of astonishing figures, from fatal doses of poison to grizzly death tolls, this gripping armchair guide also covers scores of famous cases such as the Black Dahlia, Acid Bath Murderer and Yorkshire Ripper. Featuring murders involving Al Capone, Bonnie and Clyde, Neville Heath, Lord Lucan, Ted Bundy, Harold Shipman and even Adolf Hitler, it's a must for true crime addicts, history buffs or anyone who has ever longed to solve a classic 'whodunit'.