Friday 1 July 2022 09:42 AM Body language of the killer mothers as Logan Mwangi's murderer is sentenced trends now

Friday 1 July 2022 09:42 AM Body language of the killer mothers as Logan Mwangi's murderer is sentenced trends now
Friday 1 July 2022 09:42 AM Body language of the killer mothers as Logan Mwangi's murderer is sentenced trends now

Friday 1 July 2022 09:42 AM Body language of the killer mothers as Logan Mwangi's murderer is sentenced trends now

Britain's killer mothers are among the most reviled of criminals. Cold, calculating and cruel, their heinous crimes betray everything it means to be the maternal parent.

And Angharad Williamson, 31, is no exception. She was yesterday sentenced to life in prison, with a minimum 28 years behind bars, for murdering Logan Mwangi, five, before conspiring to dump his body - with the help of her lover John Cole, 40, and an unnamed 14-year-old - in a nearby river in Bridgend, South Wales, on July 31 last year. 

She is among of a handful of warped mothers whose crimes have broken hearts across the country over the past year, all with their own twisted tales of abuse, neglect and ultimately, death. 

Their unspeakable acts sparked outrage among the British public, made worse by the crocodile tears they employed in front of the authorities in a desperate bid to get away with murder. 

In December last year, Emma Tustin, 32, was convicted of killing her stepson Arthur Labinjo-Hughes by repeatedly slamming his head on a hard surface after she and 29-year-old Thomas Hughes - the boy's father - inflicted a campaign of cruelty on the youngster, including starving him and poisoning him with salt.

In both cases, the women were caught on police body cameras as they tried to cover up their murderous deeds, but to the trained expert eye, their body language provided clues of their guilt. 

Consultant Forensic Psychologist Dr Keri Nixon and body language expert Dr Cliff Lansley told the MailOnline how they employed different tactics in failed attempts to cover their tracks. 

Williamson attempted an Oscar-worthy display of hysterics after calling police to her home to report her son missing last summer, before being told he had been found unconscious. 

Police bodycam footage shows her screaming at her lover Cole: 'Why am I not allowed to see my own biological son?'

Tragic Logan Mwangi

Angharad Williamson, 31, hysterically wailed (pictured above) while pretending to be unaware of what happened to five-year-old Logan Mwangi in Bridgend, Wales, last July

Angharad Williamson, 31, hysterically wailed (pictured right) while pretending to be unaware of what happened to five-year-old Logan Mwangi (pictured left) in Bridgend, Wales, last July

Karen Matthews led from Dewsbury police station before a court appearance over her daughter Shannon's 'kidnap'

Shannon went missing in March 2008 on her way home from a swimming lesson in Dewsbury

Karen Matthews led from Dewsbury police station before a court appearance over her daughter Shannon's (pictured right) 'kidnap'. While by no means a killer, Matthews shot to infamy when she faked Shannon's disappearance, earning her the title of 'Britain's Most Hated Mum'

Arthur Labinjo-Hughes

Emma Tustin (pictured), 32, admitted segregating Arthur Labinjo-Hughes for up to 14 hours a day for seven days a week in a hallway in their home near Solihull, West Midlands

Emma Tustin (pictured right), 32, admitted segregating Arthur Labinjo-Hughes (pictured left) for up to 14 hours a day for seven days a week in a hallway in their home near Solihull, West Midlands 

While in her kitchen, she yells: 'He is unconscious, why is he unconscious?' Gesturing towards police officers before falling to the ground, she continues: 'All I'm getting is answers like this. 

'Why is no one telling me what's going on? He's my baby, what's going on?'

She is later seen stood on her doorstep, saying: 'If he is unconscious he needs me. He needs warm clothes. He needs mum. I feel so useless. This is all my fault.'

Body language expert Dr Cliff Lansley told MailOnline how her behaviour suggests she was 'performing' rather than 'reacting'.

He revealed: 'Williamson is wailing during the video clip from the doorstep, yet her facial muscles show no reliable signs of sadness. 

'When we are feeling sadness our inner brows raise and the lip corners turn downwards - we see none of that here.

'We do, however, see her lip corners stretch back horizontally towards her ears a couple of times. 

'The muscles that create this movement, the risorius muscles, are activated when we are fearful. 

'This could be associated with her being told that Logan has been found unconscious, when she thought (or knew) that he was dead when her partner dumped his body in the early hours that morning. 

'During this performance on the doorstep we also hear a steady voice with sobs on the out-breath. This isn't characteristic of genuine sadness where the voice tone is often broken and we usually hear the sobs on the in-breath. 

'Such a performance is seen on perpetrators who are faking sadness to deflect suspicion away from themselves. There are some linguistic anomalies too.

'''Why am I not allowed to see my own biological son?'' This is a strange phrase, adding the word ''biological'' instead of just saying ''my son''. This suggests she is trying to convince the Police that she has a closer relationship with her son, Logan, than she actually has.

'We also hear her say, ''this is all my fault''. This appears to be the truth, known as a ''Freudian slip''. It could be a leaked confession.' 

In the Tustin case, police body-worn footage showed the killer stepmother telling PC Louise Williams that Arthur 'f***ing hates me' while paramedics treated the boy.

On the morning of July 31 last year the once 'smiling, cheerful little boy' Logan Mwangi (pictured), was found by police just 250 metres from his home submerged in the River Ogmore

On the morning of July 31 last year the once 'smiling, cheerful little boy' Logan Mwangi (pictured), was found by police just 250 metres from his home submerged in the River Ogmore

Williamson was jailed alongside John Cole (both above), 40, at Cardiff Crown Court today alongside a teenage boy, who cannot be named because of his age

Williamson was jailed alongside John Cole (both above), 40, at Cardiff Crown Court today alongside a teenage boy, who cannot be named because of his age

Explaining his injuries, Tustin said: 'Arthur was told to sit on the thinking step. He's threw himself on the floor and banged himself on the radiator.

'He's kicked me in the process of trying to get him back on the thinking step.

'He's then gone on all fours on the floor and I've told him to get up. I've shut the door, all I heard was a crack.

'He was headbutting, on all fours, the floorboards. At that point he was fine.'

Tustin added: 'I put my arms underneath him to pick him up and he dropped and he banged his head three times on the floor. As I picked him up he hit me as I tried to get him up.'

Tustin, speaking at a rapid pace, told the officer that Arthur had been 'lashing out' and 'we've had s*** off him for six months'.

She said: 'Like I said, the last six months he's battered both my kids, he's smashed the house to pieces. He's battered his dad, he hit me.

'Yesterday, we went to my friend's house. He pushed me down five stairs, saying 'you're not my real mum, I'm going to kill you'. I'm going to get my mum to kill you.'

She then added: 'Done my best for that kid, he f***ing hates me. I couldn't get him off the floor.'

When spoken to by the same West Midlands Police officer, the boy's father Hughes told how he had returned from the supermarket to find his son unresponsive. He claimed Arthur had been on 'hunger strike'.

She said: 'We've experienced a few problems with behaviour. He's been lashing out and spitting his food out. He's gone on on hunger strike.

'He's turned around and said he wants to drink water all the time. We've said unless you eat

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