Duwe's 2007 book, Mass Murder in the United States: A History, is a fine piece of scholarship that draws upon his detailed examination of 909 mass murders committed in the USA during the 20th century. He makes a compelling case that mass murder is not new, that the rate of mass murder is not on the rise, and that the severity of each incident is not, on average, increasing.
Duwe tells us that mass murder scenarios break down into three broad categories: criminal massacres of competitors, public mass murders, and family annihilations. Involvement in gangs or illegal drug distribution seems to be about the only segment to which conventional theories of criminality might be applied. With regard to the other two types, the fact that there are only ~20 incidents a year in a country of 311 million people, suggests even most psychological theories won't have much to offer by way of detection or prevention. Forensic analysis may help us categorize the offender after the fact, but only the slimmest fraction of "crazy" people ever act out in this horrible way either.
Mass Murder in the United States draws upon 909 mass murder events in the U.S. in the 20th century. Duwe selected cases in which four people were killed in an event lasting less than 24 hours. He detected two surges in the data. The first, in the 1920-30s, were largely divided between gangland crimes – the “The Saint Valentine’s Day Massacre” being a notorious example – and family annihilations perpetrated by distraught Depression-era fathers with a sadly misapplied sense of obligation to their families. The second wave started in the mid-1960s, peaked in the 1990s, and is now in decline. The wave of mass murder our generation has lived through is evenly divided between criminal massacres, public mass murder – in public, in schools and at work, and again, family annihilations. Grimly interesting is the fact that bombing and arson have accounted for a higher proportion of deaths than most realize.
Duwe's discussion of moral panics and the role the news media play in the social construction of concern on this and other issues is very helpful to those of us interested in understanding why hysteria frequently drives public discourse. As we attempt to engage in productive discussions about frightening events we must lead with facts rather than fear. If you would have an opinion on this topic you owe it to yourself, your clients, and your community to read this book.
Mass Murder in the United States: A History, by Grant Duwe
Paperback, 213 pages
Publisher: McFarland & Company, Incorporated Publishers
Publication date: 6/28/2007