On Nov. 28, 1969, Betsy Aardsma, a 22-year-old graduate student in English at Penn State, was stabbed to death in the stacks of Pattee Library at the university's main campus in State College. For more than forty years, her murder went unsolved, though detectives with the Pennsylvania State Police and local citizens worked tirelessly to find her killer. The mystery was eventually solved—after the death of the murderer. This book will reveal the story behind what has been a scary mystery for generations of Penn State students and explain why the Pennsylvania State Police failed to bring her killer to justice.More than a simple true crime story, the book weaves together the events, culture, and attitudes of the late 1960s, memorializing Betsy Aardsma and her time and place in history.

"This was a book I almost literally couldn't put down. I devoured its 400 pages in just 3 days. Murder in the Stacks: Penn State, Betsy Aardsma, and the Killer Who Got Away, by David DeKok, is a thriller of a tale. It brings to life a 45-year old cold case: the murder of a 22-year-old grad student among the bookshelves at Penn State's Pattee Library. . . .You can find out the possible identity of the killer by Googling the Aardsma murder case. But don't. Wait until you get your hands on a Murder in the Stacks, and be riveted to your chair by this stunning true story." - Pennsylvania State University

"DeKok presents his theory of Pennsylvania State University student Betsy Aardsma's 1969 murder in the university's library, focusing heavily on her putative killer Rick Haefner's background and legal activities. . . .[T]his account provides a detailed picture of the kind of community Aardsma lived and died in and the attitudes preventing her killer from being brought to justice. While the overtness of the author's research efforts and unusualness of his dramatic speculation are slightly jarring, the facts he unearths and contextualizes reveal a story to satisfy readers willing to follow along. It is unclear whether more credit is due the author or Haefner himself for bringing such a fascinatingly detestable villain to the reader, who increasingly hopes that Haefner suffers an end suitably worthy of his numerous crimes. Verdict: Library workers, readers who love to hate antagonists, and those interested in small-town tragedies will appreciate this book." - Library Journal

"DeKok, a former investigative reporter noted for his coverage of the Centralia mine fire, turns his attentions to a baffling murder that has haunted Penn State for decades. . . .DeKok reconstructs Aardsma’s life and death, sparing no detail in his attempt to provide the full and authoritative story from beginning to end. In the process, he points the finger at one suspect, Richard Haefner, a geology graduate student and secret pedophile with a checkered past and a volatile temper. Though Haefner was never charged with the murder, DeKok follows his subsequent legal troubles, and paints a convincing picture of a man with the means, motive, and opportunity for the murder. DeKok examines other suspects and every other aspect of Aardsma’s life, as well as the cultural events influencing the era: 1969, he claims, was the 'long, hot summer of the murder year,' defined by a rash of high-profile murders whose culprits. . . .quickly gained tabloid notoriety. [I]t's well written, accessible, and undeniably thorough, making this an exemplary true-crime story." - Publishers Weekly