In the dawn haze of 24 January 1941, a white Buick sat half-slid off the Nairobi-Ngong Road, its engine off, its driver slumped against the wheel with a single bullet through his skull. Inside was Josslyn Victor Hay, the 22nd Earl of Erroll-aristocrat, colonial officer, and lightning rod for desire and resentment in British Kenya. No gun, no footprints, and faint white rubber scuffs on the back seat turned the car into a locked room under open sky.From dinner and champagne at the Muthaiga Club with Lady Diana and Sir Jock Delves Broughton to the discovery of the body less than an hour later, every minute of that night has been mapped, argued, and contested. Was Erroll killed for love, for politics, or for something that never made it into the colonial record?After the Buick Stops follows the case from those last clean moments outside Diana's driveway through the cordoned roadside scene, the autopsy table, and a Nairobi courtroom where privilege and doubt shared the dock. Moving through witness statements, ballistics reports, and decades of official correspondence, Colin J. Mercer rebuilds the investigation piece by piece, always returning to one narrow window of time: the gap between 02:30 and 03:10 when a living man became a body in an empty car.A locked-car homicide on a dark African road, still officially an unsolved murder. Built around a clear chronology, victimology and perpetratorology summaries, and an appendix of case files, the narrative gives readers both the sweep of history and the granular texture of a forensic investigation. This book contains no images-only cinematic narrative written in the style of a detective-investigator.As the story moves through police files and courtroom drama into the long afterlife of the case, it keeps its focus on the human costs of life in colonial Kenya-the privileges that shielded some, the silences that buried others. Rather than chasing sensational twists, Mercer treats the Erroll file as a living Cold Case, asking what justice means when evidence is partial, power is uneven, and the archive itself has been shaped by empire.As a reader, you're invited to walk the road from Muthaiga to Ngong alongside investigators and witnesses: studying the bullet that didn't match, the scuff marks that hinted at a second passenger, and the testimony that never quite aligned. You'll come away with a grounded understanding of this historical crime and the ways it still echoes through criminal justice history and Kenyan public memory.What if the most telling clues are the gaps between statements, the map that surfaced decades later, or the white plimsoll marks that never found a matching shoe?This Book Is For Readers Who...Reach for true crime books that balance suspense with empathy and context.Want a clear, walkable timeline that makes sense of conflicting accounts and forensic detail.Are drawn to narratives that explore power, race, and class inside an empire's gilded margins.Appreciate meticulous reconstruction of scenes-the dinner table, the club verandah, the lonely road-without sacrificing human dignity.Perfect For Fans Of...Gregg Olsen's investigative narratives.Erik Larson's atmospheric historical nonfiction.Michelle McNamara's work in I'll Be Gone in the Dark.Erroll's death still sits in official files as unfinished, a case closed on paper but not in conscience. Based entirely on documented records, not invention, this narrative lets the surviving fragments of evidence carry their own weight. Open the file and take your seat beside the Buick. Will you accept the version history has settled for-or follow the trail of silence back to the road where the Buick stopped?