Quick Summary
Christopher Halliwell, a convicted double‑murderer, was found guilty of killing Becky Godden‑Edwards in 2007 and Sian O’Callaghan in 2011. The programme examines his crimes, the investigations that ultimately led to his conviction, and the subsequent legal proceedings in the United Kingdom.
About This Program ✦
The programme titled Christopher Halliwell is an episode‑length documentary that focuses on a notorious criminal case. It falls squarely within the true‑crime genre, presenting a concise yet thorough look at the actions of a man whose name has become synonymous with two high‑profile murders. At the heart of the episode are the two killings committed by Christopher Halliwell, a convicted double‑murderer. The first victim, Becky Godden‑Edwards, lost her life in 2007, while the second, Sian O’Callaghan, was killed in 2011. The narrative centres on Halliwell’s responsibility for both deaths, tracing the timeline from the initial crime through to his eventual conviction. The broadcast delves into the circumstances surrounding each murder, highlighting the stark contrast between the two incidents yet underscoring the common thread of Halliwell’s involvement. By examining the evidence and the legal outcomes, the episode illustrates how the justice system ultimately held Halliwell accountable for the loss of both women. In addition to recounting the factual details of the crimes, the programme provides insight into the impact of Halliwell’s actions on the families of Becky Godden‑Edwards and Sian O’Callaghan. It offers a factual recounting of the events without speculation, presenting viewers with a clear picture of a convicted double‑murderer’s criminal history.
Britain's Most Evil Killers broadcasts on Sky Crime +1 at 9:00pm, Thursday, 12 February 2026. (Subtitles, repeat)




