Billy Jensen turns true crime listening into something closer to fieldwork, and that shift alone makes Chase Darkness with Me worth clearing space for in your audiobook queue. This is not a journalist recounting other people's investigations from a safe narrative distance. Jensen spent fifteen years writing about unsolved murders before deciding, after the sudden death of his friend and fellow crime writer Michelle McNamara, that recounting was no longer enough.
The premise sounds almost too clean for nonfiction: a reporter gets fed up with cold cases staying cold and builds his own method for solving them, using social media, crowdsourced tips, and the same doggedness that used to go into his articles. What keeps it from feeling like a gimmick is how specific the results are. Jensen walks listeners through identifying the Halloween Mask Murderer, locating a missing girl in the California Redwoods, and investigating the only other homicide in New York City on September 11, 2001.
Reviewer Joanna Goff places Jensen in a longer lineage of true crime writing, tracing her own interest back to Vincent Bugliosi's 'Helter Skelter' read as a preteen, and that comparison is apt. Both books share a prosecutor's or investigator's eye for how small, overlooked details eventually add up to an identification, rather than a true crime writer's eye for atmosphere alone.
Finishing the Book Michelle McNamara Left Behind
The book's spine is really two intertwined stories: Jensen's own casework, and his role finishing 'I'll Be Gone in the Dark' after Michelle McNamara's death, the book that helped identify the Golden State Killer. Listeners who came to true crime through McNamara's work will find real emotional weight here, not just professional context. Reviewer Danielle Christine calls the prose 'humorous and genuine' while flagging that some of Jensen's recollections deserve a content warning, a combination that tracks with how the book actually reads: procedural and often funny, until it suddenly is not.
Karen Kilgariff narrates, and that casting is not incidental. She co-hosts My Favorite Murder, one of the most listened-to true crime podcasts of the last decade, and she wrote the book's foreword before stepping into the narrator's chair. For a large slice of this book's natural audience, her voice already carries a specific kind of trust built over hundreds of podcast episodes about exactly this subject matter. Reviewer Joanna Goff notes that Jensen 'has a way of bringing you right along with him,' and Kilgariff's familiar, unhurried delivery reinforces that sense of being let in on an investigation rather than lectured about one.
Podcast Trust Kilgariff Brings to the Narration
For listeners who already trust her voice from hundreds of hours of podcast familiarity, Kilgariff's narration closes the distance between this book and its natural audience in a way a generic narrator simply could not. Reviewer beckmank frames the book's appeal simply: true crime fans who want to see cases actually get solved, not just recounted, will find that satisfaction here more consistently than in most books in the genre.
Jensen's own casework gives the book a procedural backbone beyond the McNamara connection. The Halloween Mask Murderer case, the Redwoods search, the September 11 homicide, each gets enough detail to function as a genuine investigation rather than a passing anecdote, and Jensen closes with what the synopsis calls 'the tools and the rules' for readers who want to try similar methods themselves.
Structurally, Jensen manages something genuinely difficult: keeping all four of those investigations distinct enough that listeners never lose track of which case is which, while still building toward a single argument about how citizen-led investigation actually works in practice. Each case functions almost as a worked example, building the listener's own investigative literacy case by case rather than simply entertaining with one long narrative.
Should Private Citizens Run Murder Investigations?
A real ethical question also sits underneath the book's most appealing premise: should private citizens be running their own murder investigations at all? Jensen offers his methods to readers directly, and whether that strikes you as empowering or uncomfortable will shape how you feel about the book's back half. It is worth going in aware that this is participatory true crime, not just narrative true crime.
This audiobook does not soften its material for casual listening either. The Allenstown 4 case, unidentified remains found in New Hampshire, is genuinely disturbing, and Danielle Christine's four-star review specifically recommends 'a couple trigger warnings' for listeners sensitive to violent crime detail recounted at length. If you tend to skip the goriest passages in other true crime books, know that Jensen does not skip much here.
Most True Crime Ends Without an Answer
Existing fans of My Favorite Murder are close to a built-in audience here, given Kilgariff's foreword and narration, and anyone who read 'I'll Be Gone in the Dark' and wanted more of Michelle McNamara's world from a different angle will find real value in these pages.
Skip it if you need clean emotional distance from violent crime content, or if the citizen-investigator premise sits wrong with you ethically before you even start. For everyone else, particularly listeners who already trust Kilgariff's voice, this is a strong, specific entry point into contemporary true crime.
Reviewer beckmank's point deserves real weight: most true crime, by nature, ends without resolution, since most murders documented in the genre stay unsolved. Jensen's book is unusual precisely because several of its central cases end in actual identification, and that structural difference from the rest of the genre is worth knowing if you have grown tired of true crime books that trail off without an answer.
