This is the first truly comprehensive book examining the life and career of the murderer who has become one of America’s great supervillains. It reveals not only the true story but how the legend evolved, taking advantage of hundreds of primary sources that have never been examined before, including legal documents, letters, articles, and records that have been buried in archives for more than a century. Although Holmes is just as famous now as he was in 1895, this deep analysis of contemporary materials makes clear how much of the previously known story came from reporters who were nowhere near the action, a dangerously unqualified new police chief, and lies invented by Holmes himself.