The brutal murder of five-year-old Logan Mwangi in 2021 remains one of the most chilling cases of child abuse in recent British history. Locked away in a dark bedroom during a Covid-19 isolation period, the young boy was subjected to a horrific, sustained physical campaign. He suffered injuries so severe they resembled those of a high-speed car crash. When his body was finally dumped like rubbish in the River Ogmore in Bridgend, South Wales, his mother, Angharad Williamson, played the part of a frantic parent. She screamed down the phone to 999 operators, claiming her son had vanished.
The jury didn't buy the act. In April 2022, Williamson, her partner John Cole, and Cole’s 14-year-old stepson Craig Mulligan were convicted of murder. Williamson was sentenced to life with a minimum of 28 years behind bars.
Now, Williamson is pushing to have her conviction reviewed.
At a pre-inquest review at South Wales Central Coroners' Court, a former senior police officer named Tony Thompson revealed he has been instructed by Williamson to review her conviction. He's doing it for free. The goal? To find enough legal leverage to take her case to the Criminal Cases Review Commission (CCRC), the independent body that investigates potential miscarriages of justice.
But does she actually have a case, or is this just another dramatic maneuver from a mother who stood by while her son was beaten to death?
The Legal Strategy Behind the Review
This isn't Williamson’s first attempt to escape her life sentence. In January 2023, she took a swing at the Court of Appeal to challenge her conviction.
Her lawyers argued that the original trial judge, Mrs. Justice Jefford, made a mistake by blocking evidence of John Cole’s history. They wanted the jury to hear about Cole’s past violence, his historic ties to the fascist National Front, and allegations that he held deep-seated racist views. Because Logan was of mixed-race heritage, her legal team argued this racism provided a clear, singular motive for the abuse—pointing the finger squarely at Cole and away from Williamson.
The Court of Appeal dismissed the application flat out. The Lord Chief Justice ruled that Cole’s racist beliefs and past violence were more than 15 years old and had no direct, proven bearing on the murder. The original judge's ruling was deemed "impeccable".
So, what is Tony Thompson looking for now?
As a former police officer, Thompson is likely hunting for new, undisclosed evidence or procedural flaws. To get the CCRC to refer a case back to the Court of Appeal, you need a "real possibility" that the conviction won't stand up. That usually requires fresh evidence that wasn't available during the original trial, or an entirely new legal argument.
During the pre-inquest hearing, Thompson requested "interested person" status, which would allow him to actively participate in Logan's full inquest, now scheduled for November 2027. He argues that the inquest and his private investigation are deeply intertwined.
Why the Prosecution’s Case Against Williamson Was So Strong
If Williamson wants to convince the CCRC she’s innocent, she has to dismantle a mountain of highly coordinated digital and physical evidence.
During the 10-week trial, Williamson claimed she was asleep while the fatal blows were delivered and had no idea Cole and Mulligan were dumping Logan's body. She painted herself as another victim of Cole's coercive control.
The physical evidence proved otherwise:
- The CCTV Footage: While Williamson claimed to have slept through the night, house CCTV and light activity inside the flat showed curtains twitching and lights turning on and off at the exact times Cole and Mulligan were moving Logan’s body.
- The Dehumanization of Logan: Logan was treated as an outcast. When he contracted Covid-19, he was barricaded in his room behind a child gate, forced to turn his face to the wall when food was brought to him. Williamson did not fight this; she actively participated in his extreme isolation.
- The Cover-Up: Williamson didn't just call 999; she actively helped dispose of evidence. Logan’s dinosaur pajamas, torn into three pieces, and his bedsheet were hidden or binned to keep the police from seeing the blood and trauma.
Pathologists testified that Logan had 56 external injuries and massive internal damage, including a torn liver and a torn bowel. These injuries weren't instant; Logan would have survived in excruciating pain for several hours. The sentencing remarks made it clear: in a flat that small, it is physically and logically impossible for Williamson to have been unaware that her son was dying.
Systemic Failures and the Upcoming 2027 Inquest
While Williamson fights her personal legal battle, the upcoming inquest in 2027 will focus heavily on the systemic failures of social services and healthcare providers. Logan was on the child protection register. Social workers visited the home, yet they failed to see through the excuses made by Williamson and Cole.
A previous Child Practice Review highlighted a severe "lack of curiosity" from professionals. Months before his death, Logan had been taken to the hospital with a broken collarbone and extensive bruising. Williamson claimed he fell down the stairs, and doctors accepted it without triggering a child protection referral. The Covid-19 lockdowns allowed the family to shield Logan from the gaze of teachers and social workers, creating a perfect storm of isolation and cruelty.
The 2027 inquest will put these agencies under the microscope again. Thompson’s attempt to use the inquest as a fishing expedition for Williamson’s appeal shows just how high the stakes are.
Williamson’s chances of successfully overturning her conviction through the CCRC remain incredibly slim. The trial established her joint enterprise and collusion in both the murder and the subsequent cover-up. For a community still scarred by Logan’s death, her ongoing attempts to avoid her 28-year minimum sentence only serve as a painful reminder of the system that failed to protect a defenseless five-year-old boy.
