Netflix’s three-part drama The Witness premiered on June 4, 2026, bringing the story of Rachel Nickell’s 1992 murder to the screen through the eyes of her son, Alex Hanscombe, who was just 2 years old when he became the sole witness to the killing on London’s Wimbledon Common.
Created by Rob Williams and directed by Alex Winckler, the series focuses on how Alex and his father André Hanscombe navigated the aftermath of the brutal attack. Both Alex and André served as consultants on the drama, which is based on Alex’s memoir Letting Go.
On July 15, 1992, Rachel Nickell, 23, was attacked, sexually assaulted, and stabbed 49 times while walking with her son and their dog. Alex witnessed the attack and was left covered in blood as he tried to revive his mother. “The moment I watched my mother’s soul leave her body is one I will never forget,” Alex later told The Sun in 2017.
The Witness explores Rachel Nickell’s 1992 murder through her son’s eyes on Netflix
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The initial police investigation was marked by significant errors. Detectives charged an innocent man, Colin Stagg, with the murder in 1993 without forensic evidence. After 13 months in custody, a judge cleared him in 1994. Stagg was later compensated £706,000 after police were found to have used “honey trap” methods to coerce a confession.
The real killer remained at large for over a decade. In 2002, advanced DNA technology allowed authorities to reexamine evidence from Nickell’s body. They found a match with convicted murderer Robert Napper, who was already detained at Broadmoor Hospital for a series of rape attacks. Napper confessed to Nickell’s murder and was convicted in 2008.
Netflix is releasing The Witness alongside a companion documentary, The Murder of Rachel Nickell, directed by BAFTA-nominated filmmaker Lucy Bowden. The documentary features exclusive archival footage, family accounts, and forensic expert analysis of the case and investigation.
As an adult, Alex has become a yoga teacher and used his experience to advocate for police reform. He has emphasized the importance of learning from the mistakes made in his mother’s case to prevent similar errors in future investigations.
Sources
- Netflix — release date, cast, plot, and series background from official Netflix Tudum articles
- Time Magazine — detailed account of the murder, investigation, and Alex Hanscombe’s reflections
- Wikipedia — historical details about the killing and case timeline
- BBC — confirmation of the drama’s release and focus on the family’s experience
