- George Wanyonyi was sentenced to 30 years in prison after being convicted of defiling his 15-year-old stepdaughter.
- The sentence was delivered at Kajiado Law Courts on September 22, 2026.
- The prosecution had asked the court to impose a sentence above the statutory minimum of 20 years.
- The court considered the prolonged abuse, the girl’s vulnerability and the family relationship between the accused and complainant.
- Wanyonyi was charged under Section 8(1) as read with Section 8(3) of the Sexual Offences Act.
A Kajiado man has been handed a 30-year prison sentence after a court found him guilty of sexually abusing his 15-year-old stepdaughter. George Wanyonyi was sentenced on September 22, 2026, following the conclusion of his trial at the Kajiado Law Courts. The case involved repeated sexual abuse within a family setting. The court imposed a sentence that was 10 years higher than the statutory minimum applicable to the offence.
The prosecution’s case was that the teenage girl had been subjected to sexual abuse repeatedly over an extended period. During the trial, the court heard evidence concerning the alleged abuse involving Wanyonyi and his stepdaughter. The complainant’s testimony was considered by the court in determining the case. The court ultimately found her evidence credible and consistent.
The circumstances surrounding the testimony were also considered in the proceedings. The prosecution told the court that the complainant had faced fear and trauma while recounting what she had experienced. Her vulnerability was among the factors raised during the sentencing stage. The family relationship between the accused and the girl was also highlighted.
Wanyonyi had faced a charge of defilement under Section 8(1) as read with Section 8(3) of the Sexual Offences Act. The charge relates to the sexual offence involving a child within the age category covered by the provision. The matter proceeded to a full trial before the sentence was delivered. The court later moved to consider the appropriate punishment after the conviction.
Prosecution sought a heavier sentence
Prosecution Counsel Beatrice Kimunya asked the court to impose more than the statutory minimum sentence. She pointed to the length of time over which the abuse was alleged to have occurred. The prosecution also cited the girl’s vulnerability as a child. The circumstances of the relationship between Wanyonyi and his stepdaughter were presented as another reason for a tougher sentence.
The prosecution argued that the case called for a sentence beyond the minimum 20 years provided for the offence. The submissions focused on the nature and circumstances of the abuse rather than treating the case as an isolated incident. The court considered those arguments alongside the evidence presented during the trial. It then determined the prison term to be imposed.
Hon. L.W. Muchiri ultimately sentenced Wanyonyi to 30 years in prison. The punishment exceeded the statutory minimum by 10 years. The court reached the sentence after considering the evidence and the submissions made during the sentencing proceedings. Wanyonyi will therefore serve a substantial custodial sentence following his conviction.
The case highlights a sexual offence involving a child within a family environment. The complainant was the accused’s 15-year-old stepdaughter. The prosecution had urged the court to take into account the prolonged nature of the alleged abuse and the trust associated with the family relationship. The court subsequently handed down the 30-year sentence.
