Calendar An icon of a desk calendar. Cancel An icon of a circle with a diagonal line across. Caret An icon of a block arrow pointing to the right. Email An icon of a paper envelope. Facebook An icon of the Facebook "f" mark. Google An icon of the Google "G" mark. Linked In An icon of the Linked In "in" mark. Logout An icon representing logout. Profile An icon that resembles human head and shoulders. Telephone An icon of a traditional telephone receiver. Tick An icon of a tick mark. Is Public An icon of a human eye and eyelashes. Is Not Public An icon of a human eye and eyelashes with a diagonal line through it. Pause Icon A two-lined pause icon for stopping interactions. Quote Mark A opening quote mark. Quote Mark A closing quote mark. Arrow An icon of an arrow. Folder An icon of a paper folder. Breaking An icon of an exclamation mark on a circular background. Camera An icon of a digital camera. Caret An icon of a caret arrow. Clock An icon of a clock face. Close An icon of the an X shape. Close Icon An icon used to represent where to interact to collapse or dismiss a component Comment An icon of a speech bubble. Comments An icon of a speech bubble, denoting user comments. Ellipsis An icon of 3 horizontal dots. Envelope An icon of a paper envelope. Facebook An icon of a facebook f logo. Camera An icon of a digital camera. Home An icon of a house. Instagram An icon of the Instagram logo. LinkedIn An icon of the LinkedIn logo. Magnifying Glass An icon of a magnifying glass. Search Icon A magnifying glass icon that is used to represent the function of searching. Menu An icon of 3 horizontal lines. Hamburger Menu Icon An icon used to represent a collapsed menu. Next An icon of an arrow pointing to the right. Notice An explanation mark centred inside a circle. Previous An icon of an arrow pointing to the left. Rating An icon of a star. Tag An icon of a tag. Twitter An icon of the Twitter logo. Video Camera An icon of a video camera shape. Speech Bubble Icon A icon displaying a speech bubble WhatsApp An icon of the WhatsApp logo. Information An icon of an information logo. Plus A mathematical 'plus' symbol. Duration An icon indicating Time. Success Tick An icon of a green tick. Success Tick Timeout An icon of a greyed out success tick. Loading Spinner An icon of a loading spinner.

Tragic Logan Mwangi’s father: ‘I’ll always be asking why my son had to die’

Logan Mwangi, also known as Logan Williamson, whose body was discovered in the River Ogmore on July 31 2021 (South Wales Police/PA)
Logan Mwangi, also known as Logan Williamson, whose body was discovered in the River Ogmore on July 31 2021 (South Wales Police/PA)

The father of a five-year-old boy murdered by his mother, stepfather and a 14-year-old boy has asked why his son had to die in such horrific circumstances.

In April, Angharad Williamson, 31, John Cole, 40, and the youth were convicted after a 10-week trial at Cardiff Crown Court of murdering Logan Mwangi.

They will be sentenced on Thursday.

The boy’s body was found in the River Ogmore in Pandy Park, Bridgend, South Wales, on the morning of July 31 2021.

Ben Mwangi (right) listens as Detective Superintendent Darren George of South Wales Police reads a statement after John Cole, Angharad Williamson and a 14-year-old boy were found guilty of murder (Rod Minchin/PA)
Ben Mwangi (right) listens as Detective Superintendent Darren George of South Wales Police reads a statement after John Cole, Angharad Williamson and a 14-year-old boy were found guilty of murder (Rod Minchin/PA)

He had more than 50 external wounds, as well as multiple internal injuries akin to those found in victims of a fall from height or high-speed car crash.

Logan’s father, Ben Mwangi, had been denied contact with his son since April 2019 – around the time Williamson began her relationship with Cole.

Speaking to ITV, Mr Mwangi said: “What child has to go through that sort of torture for such a long period of the time? No, it really doesn’t seem real.

“One of the biggest questions in my whole entire life I’ll always be asking myself is, ‘Why? Why did this happen? Why did Logan have to die?’”

Logan Mwangi murder trial
Police body-worn video footage of Angharad Williamson, 31, crying crocodile tears on the doorstep of her home in Sarn, Bridgend (South Wales Police/PA)

Cole was obsessed with the idea Williamson had cheated on him with Mr Mwangi, witnesses said.

The defendant reportedly used a racial slur to describe his step-son, and had links to the National Front.

Mr Mwangi said Williamson stopped him seeing Logan.

“She blocked my number. For the past five years, I’ve been struggling and trying to fight just to see Logan. She made my life an absolute misery. All I’ve wanted to do was just be a dad,” he said.

Just a month before Logan was killed last July, social workers in Bridgend removed him and a younger sibling from the child protection register – meaning they were no longer believed to be at risk of serious harm.

But Logan had suffered “catastrophic” internal injuries consistent with a “brutal and sustained assault”.

Logan Mwangi
Prosecutors said five-year-old Logan had been ‘dehumanised’ by his family in the days leading up to his murder (South Wales Police/PA)

The day before police found his body, a social worker spent 20 minutes outside Logan’s home speaking to the three defendants, but did not see or hear him.

Mr Mwangi was not told his son was on the child protection register and wants the law changed so social services have a duty to inform estranged parents.

He said: “I probably would have tried to take him away. Why didn’t they do anything to make it a safe environment for him when it clearly wasn’t?

“If I can stop this from happening to anybody else, then that will be the biggest, positive, most positive thing. My lasting memory of him was just a happy little boy that called me ‘Daddy’.

“The wonderful memories I have with my son will never be tarnished. They will forever be in my heart and soul.

“I loved him so much and somehow I have to live my life knowing that I will never get to see him grow up to be the wonderful man I know that he could be.”

Logan Mwangi murder scene
The home of Logan Mwangi and where his body was discovered are highlighted in an aerial photo of the scene (South Wales Police/PA)

A child practice review has been launched into Logan’s death and will be led by the Cwm Taf Morgannwg Safeguarding Board, which includes local councils and the police, probation service and NHS.

An ITV documentary, The Murder Of Logan Mwangi, was produced in conjunction with South Wales Police.

It starts at 9pm on Thursday.