A family’s attempt to discipline a defiant daughter that ended in fatal violence has led to a decade-long prison sentence for her mother and aunt.
The High Court in Kibera delivered the verdict when it sentenced Mary Njeri and her sister Lilian Muhiaki to 10 years in prison for the manslaughter of 20-year-old Beatrice Wangui.
The case exposed how parental discipline, when fueled by anger and stripped of restraint, can escalate into criminal violence with irreversible consequences for families and children left behind.
The court ruled that the parental punishment inflicted in this case had crossed into criminal brutality, leaving lifelong scars.
The Kibera Law Courts in Nairobi.
Photo credit: File | Nation Media Group
Wangui was Njeri’s second-born daughter and a young mother of a two-year-old boy. She lived with her mother and siblings in Kabiria, Dagoretti, until domestic tensions forced her to leave the family home on December 24, 2024.
She returned the following day to pick up her child, telling her siblings she was taking him to his father.
When she did not return, suspicion and resentment grew within the household. On December 28, Muhiaki called Wangui with a false claim that her mother had been involved in an accident—a ruse the court later determined was meant to lure her back home.
Assaulted by family members
The case exposed how parental discipline, when fueled by anger and stripped of restraint, can escalate into criminal violence with irreversible consequences for families and children left behind.
Photo credit: Shutterstock
Upon her return, Wangui was taken inside, the door locked behind her and assaulted by her mother, aunt, brother and another aunt as she pleaded for mercy.
The court heard that while they had not intended to kill her but to "correct" her choices, their actions resulted in her death, leaving behind a grieving family, a prison sentence and a child without a mother.
During the beating, Wangui’s younger sister was warned not to follow in her footsteps, told she would "suffer the same fate" if she did, and in the process, transforming what was meant to be discipline into a threat meant to instil fear.
A neighbour, Lavender Kadesa, heard screams from the house but found the door locked and retreated. After the assault, the family members left Wangui bleeding from the head and in pain. Her younger sister carried her to bed, where she later asked for water as her condition deteriorated.
Neighbours eventually rushed her to Mutuini Level Four Hospital, but medical staff confirmed she had already died. A post-mortem revealed the cause of death as head injuries from blunt force trauma.
Njeri, 42, and Muhiaki, 40, were initially charged with murder but later entered a plea bargain with the State, admitting to the lesser charge of manslaughter. The court confirmed their pleas were voluntary and informed.
In mitigation, Njeri’s lawyer argued she had never intended to kill her daughter, believing she was acting in her best interests as a parent.
"She did not mean to cause death but was attempting to discipline her. She is deeply remorseful and has been undergoing treatment for depression," the counsel said.
The defence urged the court to consider Njeri’s mental health, remorse and responsibility toward her three remaining children, requesting a non-custodial sentence with treatment.
Muhiaki’s lawyer described her as a first-time offender who had acted under mob influence rather than deliberate intent, emphasising her remorse.
Prosecutors, however, opposed leniency, arguing that Wangui had been deliberately lured home, locked inside, brutally beaten, denied medical care and left to die.
They stressed the need to distinguish lawful discipline from unlawful assault, highlighting the devastation caused to the community and Wangui’s orphaned child.
"There was no justification for the violence," prosecutors stated.
In sentencing, the court acknowledged the absence of premeditation and the defendants’ remorse but underscored accountability.
"This court must affirm the sanctity of life and send a clear message that acts of extreme violence, however rationalised as discipline or concern, will not be tolerated," the ruling stated.
Describing the case as "a tragic domestic dispute rather than premeditated violence," the court deemed a custodial sentence necessary to deter similar conduct.
"The violent death of a young woman at the hands of her own family has caused profound emotional loss and enduring hardship, particularly for her minor child, now deprived of maternal care," the judge noted.
Probation reports raised concerns about poor parenting skills and community opposition to a non-custodial sentence, citing the offence’s gravity and potential unrest.
While Kenyan law permits life imprisonment for the offence, the court stated it would have imposed 30-year terms but reduced the sentences to ten years each due to the guilty pleas.
The sentence, effective from the date of arrest, was designed to punish, deter and rehabilitate through counselling and behavioural interventions in prison.
"In the circumstances of this case, imprisonment will also serve a rehabilitative function by providing a structured environment in which the offenders can access counselling, anger management, and behavioural interventions aimed at addressing the underlying factors that led to the commission of the offence," the court stated.
