It was a July morning on Wimbledon Common when Rachel Nickell took her usual walk with her two-year-old son. What happened next would send shockwaves through the UK and spark one of the most controversial investigations in modern British history. A young woman brutally murdered in broad daylight. A toddler left clinging to her lifeless body. And a police force so desperate for answers that they focused on the wrong man… while the real killer remained free for over a decade.

This weekend, I’ll be at CrimeCon UK in London, so I wanted to cover a case that left a lasting mark on the British criminal justice system. This is not just the story of a murder—it’s the story of a forensic failure, a media firestorm, and a long-overdue breakthrough that finally delivered justice.