BACKGROUND
1. This is the ruling on sentence following conviction on the accused’s own plea to manslaughter; the original charge of murder having been reduced pursuant to a plea agreement entered into between the State and the defence.
2. The particulars allege that on 22 January 2025 at Maweni, Mnarani area, Mtwapa Township, Kilifi County, the accused unlawfully caused the death of Isaac Kimani alias Geoffrey.
3. The accused pleaded not guilty at first. Thereafter he entered a plea agreement with the prosecution by which the murder charge was reduced to manslaughter. The Court accepted the plea and recorded conviction on the accused’s own plea.
4. Pursuant to the Court’s direction, a Victim Impact Statement and a Pre ‑ Sentence Inquiry Report (PSR) were prepared and filed by the Probation Department and are before the Court.
5. Mr. Khamisi Salim appeared for the accused and advanced mitigation. He submitted that the accused is twenty ‑ one years old, remorseful, a young adult with vocational skills, a guilty pleader who saved court time and should be treated leniently; that at the material time the accused was under the influence of alcohol; and that non ‑ custodial or rehabilitative options should be considered.
6. The accused personally addressed the Court, expressed remorse and asked the deceased’s family for forgiveness. Those expressions are noted and afforded weight as mitigation.
7. The Court drew the accused’s attention to the contents of the PSR concerning his previous encounter with the law and the rehabilitative interventions he purportedly received while in custody. The accused admitted the accuracy of those entries when so questioned by the Court.
8. Mr. F. Sirima appeared for the State. He accepted the plea agreement but urged that the circumstances of the offence and the accused’s antecedents justified a severe custodial sentence. It is recorded that Mr. Sirima correctly did not refer to the accused’s prior juvenile disposal in his oral submissions; he confined his submissions to the facts of the present offence, the aggravating circumstances (including the weapon used and the loss of life) and the Sentencing Policy Guidelines.
LEGAL FRAMEWORK AND AUTHORITIES
9. Sentencing is primarily a judicial function. The Sentencing Policy Guidelines (Judiciary Sentencing Policy Guidelines, 2016) provide guidance but do not displace judicial discretion. See Francis Karioko Muruatetu & Another v Republic (Petition Nos. 15 & 16 of 2015) [2017] KESC 2 (KLR) (14 December 2017) at paras 40–50.
10. The objectives of sentencing include retribution, deterrence, rehabilitation, protection of the public, restoration and denunciation. See also Dismas Wafula Kilwake v Republic (Criminal Appeal 129 of 2014) [2019] KECA 5 (KLR) (28 March 2019) at paras 12–20 and 40.
11. Comparative jurisprudence informs treatment of youthful offenders and the weight to be given to prior juvenile conduct. See Graham v. Florida, 560 U.S. 48 (2010) for persuasive principles on proportionality and individualized assessment of youth.
FINDINGS OF FACT
12. The Court accepts the factual narrative contained in the PSR and the Victim Impact Statement insofar as consistent with the material before the Court and the plea particulars.
13. The PSR records that the accused completed secondary education, has skills in electrical wiring, suffers adverse family circumstances, associates with negative peers, abuses alcohol, and expresses a desire to rehabilitate.
14. The PSR also records a history of general delinquency and violence and that the accused was expelled from several schools for violent or disruptive conduct.
15. The PSR discloses an earlier serious episode of violence committed while the accused was a juvenile: the killing of his defenseless five ‑ year ‑ old niece. In that matter the murder charge was reduced to manslaughter and the accused was committed to Shimo ‑ la ‑ Tewa Borstal Institution for three years.
16. After release from Borstal custody the accused sought the assistance of his cousin, the deceased in the present matter, who had offered to host and help rehabilitate him. On 22 January 2025 the accused assaulted the defenseless deceased with a gym stone, inflicting fatal injuries which caused death.
17. The Victim Impact Statement records the family’s profound grief, the brutal nature of the killing as perceived by the family, and the broader community’s fear and hostility occasioned by repeated intrafamilial violence.
JUVENILE RECORDS, CONFIDENTIALITY AND RELEVANCE
18. The confidentiality of juvenile proceedings and records is an established child ‑ rights principle. The UN Committee on the Rights of the Child, General Comment No. 10 (2007 ) on juvenile justice underscores strict confidentiality.
19 . PMK v Inspector General of Police & 2 Others (Constitutional Petition 10 of 2019 ) KHHC 486 (KLR) (G v Odunga) states that records of child offenders should ordinarily be kept confidential and not used in subsequent adult proceedings, save in limited circumstances. General Comment No. 10 and the Beijing Rules recommend that juvenile records be protected and, where appropriate, removed from public record on reaching adulthood.
20. Kenyan law is engaging with this area. While juvenile records are ordinarily treated with special care, where reliable evidence of prior juvenile conduct is placed before a court and is demonstrably relevant to assessment of risk, character and public protection, the Court may take such history into account, subject to proportionality and constitutional protections. Comparable authority includes Re Jeffrey T., 140 Cal.App.4th 1015 (2006).
21. When juvenile history is relied upon the Court must ensure the material is particularized, reliable and weighed with caution so as not to compound punishment for past conduct beyond what is appropriate for the present offence.
AGGRAVATING AND MITIGATING FACTORS
22. The court in Michael Kathewa Laichena & another v Republic [2018] KEHC 5488 (KLR) was adamant of the use of aggravating and mitigating factors during sentencing as provided by the sentencing policy guidelines.
23Mitigating factors of significance are: the accused’s youth (21 years), his guilty plea which spared the Court time, his stated remorse, his educational attainment and vocational skill.
23. Aggravating factors are numerous and compelling: (a) the deliberate and violent nature of the attack upon a relative who placed trust in the accused; (b) the use of a gym stone as the instrument of violence; (c) the earlier juvenile killing demonstrating a pattern of extreme violence and concealment; (d) an established history of delinquency, violence and expulsions from several schools; (e) the profound and continuing impact upon the bereaved family; and (f) the risk the accused poses to vulnerable persons within his circle.
24. The Court notes that in both episodes the victims were very close family members of the accused. Plea bargaining in both matters resulted in reductions to manslaughter. Plea bargaining is a legitimate procedural tool but must not become a back ‑ door route by which repeatedly violent offenders evade proportionate punishment.
25. The aggravating features substantially outweigh mitigation. The repetition of egregious violence, from childhood into young adulthood, despite prior corrective intervention, demonstrates that the accused constitutes a clear danger to all, including those who extend him assistance.
APPLICATION OF PRINCIPLES AND PROPORTIONALITY
26. The Court has applied the Sentencing Policy Guidelines and the authorities cited, ensuring sentence is proportionate to the gravity of the offence, necessary to protect the public and to denounce the conduct, and that it affords a realistic prospect of rehabilitation where appropriate.
27. The principles articulated in Francis Karioko Muruatetu & Another v Republic [2017] KESC 2 (KLR) and in Dismas Wafula Kilwake v Republic [2019] KECA 5 (KLR) inform the Court’s exercise of discretion. The Court also has regard to Graham v. Florida, 560 U.S. 48 (2010) for persuasive guidance on youth offending.
28. The Court takes care to avoid impermissible double punishment. The earlier juvenile disposal and the present conviction are separate disposals; the earlier sanction is not re ‑ imposed. Prior juvenile conduct is an aggravating factor only insofar as it is reliable, relevant and probative of propensity, lack of reform and risk. In this case , it would not have been practical to remain silent about it since both victims are very close relatives and the family and close community were all well aware of the history.
DECISION ON SENTENCE
29. The objective facts ; the calculated attack on a trusting relative, the lethal use of a gym stone, the earlier juvenile killing, the accused’s entrenched pattern of delinquency and the devastating impact upon the family , compel the conclusion that only a severe custodial sentence will adequately serve the interests of justice, protect the community and denounce repeated and brutal violence.
30. Having balanced the mitigating and aggravating factors, having applied the Sentencing Policy Guidelines and the authorities cited, and having ensured proportionality and fairness, the Court sentences the accused to life imprisonment.
31. The sentence shall take effect from 5 February 2025, the date when the accused was first arraigned before this Court.
APPEAL RIGHTS — EXPLANATION AND RECORD
32. The accused was informed, in Kiswahili through an interpreter, of his right to appeal against both conviction and sentence to the Court of Appeal, of the procedure and time limits for lodging an appeal, and of his right to apply for an extension of time and for legal aid.
OBSERVATION
33. With somber reflection the Court records the human cost of these offences: the loss of a small child in an earlier episode and now the loss of a young man who had extended help to the accused. The accused’s rehabilitation remains a matter of public interest; yet the community’s right to safety and the need to denounce repeated intimate violence require a firm sentence. It is the Court’s hope that the period of custody will provide the opportunity for genuine rehabilitation and that, if such reform is demonstrated, the accused may avail himself of lawful procedures for review.
It is so ordered.
DELIVERED, DATED AND SIGNED AT MOMBASA THIS 17TH DAY OF MARCH 2026.
Ruling delivered through Microsoft Teams Online Platform .
WENDY KAGENDO MICHENI
JUDGE
Attendance
- Mr. Khamisi Salim — Counsel for the Accused
- Mr. F. Sirima — State Counsel
- Ms. Bebora — Court Assistant
AUTHORITIES CITED
- Francis Karioko Muruatetu & Another v Republic (Petition Nos. 15 & 16 of 2015) [2017] KESC 2 (KLR) (14 December 2017).
- Dismas Wafula Kilwake v Republic (Criminal Appeal 129 of 2014) [2019] KECA 5 (KLR) (28 March 2019).
- Graham v. Florida, 560 U.S. 48 (2010).
Michael Kathewa Laichena & another v Republic [2018] KEHC 5488 (KLR
- UN Committee on the Rights of the Child, General Comment No. 10 (2007) on juvenile justice.
- PMK v Inspector General of Police & 2 Others (Constitutional Petition 10 of 2019) KHHC 486 (KLR).
- Re Jeffrey T., 140 Cal.App.4th 1015 (2006 ).
1. This is the ruling on sentence following conviction on the accused’s own plea to manslaughter; the original charge of murder having been reduced pursuant to a plea agreement entered into between the State and the defence.
2. The particulars allege that on 22 January 2025 at Maweni, Mnarani area, Mtwapa Township, Kilifi County, the accused unlawfully caused the death of Isaac Kimani alias Geoffrey.
3. The accused pleaded not guilty at first. Thereafter he entered a plea agreement with the prosecution by which the murder charge was reduced to manslaughter. The Court accepted the plea and recorded conviction on the accused’s own plea.
4. Pursuant to the Court’s direction, a Victim Impact Statement and a Pre ‑ Sentence Inquiry Report (PSR) were prepared and filed by the Probation Department and are before the Court.
5. Mr. Khamisi Salim appeared for the accused and advanced mitigation. He submitted that the accused is twenty ‑ one years old, remorseful, a young adult with vocational skills, a guilty pleader who saved court time and should be treated leniently; that at the material time the accused was under the influence of alcohol; and that non ‑ custodial or rehabilitative options should be considered.
6. The accused personally addressed the Court, expressed remorse and asked the deceased’s family for forgiveness. Those expressions are noted and afforded weight as mitigation.
7. The Court drew the accused’s attention to the contents of the PSR concerning his previous encounter with the law and the rehabilitative interventions he purportedly received while in custody. The accused admitted the accuracy of those entries when so questioned by the Court.
8. Mr. F. Sirima appeared for the State. He accepted the plea agreement but urged that the circumstances of the offence and the accused’s antecedents justified a severe custodial sentence. It is recorded that Mr. Sirima correctly did not refer to the accused’s prior juvenile disposal in his oral submissions; he confined his submissions to the facts of the present offence, the aggravating circumstances (including the weapon used and the loss of life) and the Sentencing Policy Guidelines.
LEGAL FRAMEWORK AND AUTHORITIES
9. Sentencing is primarily a judicial function. The Sentencing Policy Guidelines (Judiciary Sentencing Policy Guidelines, 2016) provide guidance but do not displace judicial discretion. See Francis Karioko Muruatetu & Another v Republic (Petition Nos. 15 & 16 of 2015) [2017] KESC 2 (KLR) (14 December 2017) at paras 40–50.
10. The objectives of sentencing include retribution, deterrence, rehabilitation, protection of the public, restoration and denunciation. See also Dismas Wafula Kilwake v Republic (Criminal Appeal 129 of 2014) [2019] KECA 5 (KLR) (28 March 2019) at paras 12–20 and 40.
11. Comparative jurisprudence informs treatment of youthful offenders and the weight to be given to prior juvenile conduct. See Graham v. Florida, 560 U.S. 48 (2010) for persuasive principles on proportionality and individualized assessment of youth.
FINDINGS OF FACT
12. The Court accepts the factual narrative contained in the PSR and the Victim Impact Statement insofar as consistent with the material before the Court and the plea particulars.
13. The PSR records that the accused completed secondary education, has skills in electrical wiring, suffers adverse family circumstances, associates with negative peers, abuses alcohol, and expresses a desire to rehabilitate.
14. The PSR also records a history of general delinquency and violence and that the accused was expelled from several schools for violent or disruptive conduct.
15. The PSR discloses an earlier serious episode of violence committed while the accused was a juvenile: the killing of his defenseless five ‑ year ‑ old niece. In that matter the murder charge was reduced to manslaughter and the accused was committed to Shimo ‑ la ‑ Tewa Borstal Institution for three years.
16. After release from Borstal custody the accused sought the assistance of his cousin, the deceased in the present matter, who had offered to host and help rehabilitate him. On 22 January 2025 the accused assaulted the defenseless deceased with a gym stone, inflicting fatal injuries which caused death.
17. The Victim Impact Statement records the family’s profound grief, the brutal nature of the killing as perceived by the family, and the broader community’s fear and hostility occasioned by repeated intrafamilial violence.
JUVENILE RECORDS, CONFIDENTIALITY AND RELEVANCE
18. The confidentiality of juvenile proceedings and records is an established child ‑ rights principle. The UN Committee on the Rights of the Child, General Comment No. 10 (2007 ) on juvenile justice underscores strict confidentiality.
19 . PMK v Inspector General of Police & 2 Others (Constitutional Petition 10 of 2019 ) KHHC 486 (KLR) (G v Odunga) states that records of child offenders should ordinarily be kept confidential and not used in subsequent adult proceedings, save in limited circumstances. General Comment No. 10 and the Beijing Rules recommend that juvenile records be protected and, where appropriate, removed from public record on reaching adulthood.
20. Kenyan law is engaging with this area. While juvenile records are ordinarily treated with special care, where reliable evidence of prior juvenile conduct is placed before a court and is demonstrably relevant to assessment of risk, character and public protection, the Court may take such history into account, subject to proportionality and constitutional protections. Comparable authority includes Re Jeffrey T., 140 Cal.App.4th 1015 (2006).
21. When juvenile history is relied upon the Court must ensure the material is particularized, reliable and weighed with caution so as not to compound punishment for past conduct beyond what is appropriate for the present offence.
AGGRAVATING AND MITIGATING FACTORS
22. The court in Michael Kathewa Laichena & another v Republic [2018] KEHC 5488 (KLR) was adamant of the use of aggravating and mitigating factors during sentencing as provided by the sentencing policy guidelines.
23Mitigating factors of significance are: the accused’s youth (21 years), his guilty plea which spared the Court time, his stated remorse, his educational attainment and vocational skill.
23. Aggravating factors are numerous and compelling: (a) the deliberate and violent nature of the attack upon a relative who placed trust in the accused; (b) the use of a gym stone as the instrument of violence; (c) the earlier juvenile killing demonstrating a pattern of extreme violence and concealment; (d) an established history of delinquency, violence and expulsions from several schools; (e) the profound and continuing impact upon the bereaved family; and (f) the risk the accused poses to vulnerable persons within his circle.
24. The Court notes that in both episodes the victims were very close family members of the accused. Plea bargaining in both matters resulted in reductions to manslaughter. Plea bargaining is a legitimate procedural tool but must not become a back ‑ door route by which repeatedly violent offenders evade proportionate punishment.
25. The aggravating features substantially outweigh mitigation. The repetition of egregious violence, from childhood into young adulthood, despite prior corrective intervention, demonstrates that the accused constitutes a clear danger to all, including those who extend him assistance.
APPLICATION OF PRINCIPLES AND PROPORTIONALITY
26. The Court has applied the Sentencing Policy Guidelines and the authorities cited, ensuring sentence is proportionate to the gravity of the offence, necessary to protect the public and to denounce the conduct, and that it affords a realistic prospect of rehabilitation where appropriate.
27. The principles articulated in Francis Karioko Muruatetu & Another v Republic [2017] KESC 2 (KLR) and in Dismas Wafula Kilwake v Republic [2019] KECA 5 (KLR) inform the Court’s exercise of discretion. The Court also has regard to Graham v. Florida, 560 U.S. 48 (2010) for persuasive guidance on youth offending.
28. The Court takes care to avoid impermissible double punishment. The earlier juvenile disposal and the present conviction are separate disposals; the earlier sanction is not re ‑ imposed. Prior juvenile conduct is an aggravating factor only insofar as it is reliable, relevant and probative of propensity, lack of reform and risk. In this case , it would not have been practical to remain silent about it since both victims are very close relatives and the family and close community were all well aware of the history.
DECISION ON SENTENCE
29. The objective facts ; the calculated attack on a trusting relative, the lethal use of a gym stone, the earlier juvenile killing, the accused’s entrenched pattern of delinquency and the devastating impact upon the family , compel the conclusion that only a severe custodial sentence will adequately serve the interests of justice, protect the community and denounce repeated and brutal violence.
30. Having balanced the mitigating and aggravating factors, having applied the Sentencing Policy Guidelines and the authorities cited, and having ensured proportionality and fairness, the Court sentences the accused to life imprisonment.
31. The sentence shall take effect from 5 February 2025, the date when the accused was first arraigned before this Court.
APPEAL RIGHTS — EXPLANATION AND RECORD
32. The accused was informed, in Kiswahili through an interpreter, of his right to appeal against both conviction and sentence to the Court of Appeal, of the procedure and time limits for lodging an appeal, and of his right to apply for an extension of time and for legal aid.
OBSERVATION
33. With somber reflection the Court records the human cost of these offences: the loss of a small child in an earlier episode and now the loss of a young man who had extended help to the accused. The accused’s rehabilitation remains a matter of public interest; yet the community’s right to safety and the need to denounce repeated intimate violence require a firm sentence. It is the Court’s hope that the period of custody will provide the opportunity for genuine rehabilitation and that, if such reform is demonstrated, the accused may avail himself of lawful procedures for review.
It is so ordered.
DELIVERED, DATED AND SIGNED AT MOMBASA THIS 17TH DAY OF MARCH 2026.
Ruling delivered through Microsoft Teams Online Platform .
WENDY KAGENDO MICHENI
JUDGE
Attendance
- Mr. Khamisi Salim — Counsel for the Accused
- Mr. F. Sirima — State Counsel
- Ms. Bebora — Court Assistant
AUTHORITIES CITED
- Francis Karioko Muruatetu & Another v Republic (Petition Nos. 15 & 16 of 2015) [2017] KESC 2 (KLR) (14 December 2017).
- Dismas Wafula Kilwake v Republic (Criminal Appeal 129 of 2014) [2019] KECA 5 (KLR) (28 March 2019).
- Graham v. Florida, 560 U.S. 48 (2010).
Michael Kathewa Laichena & another v Republic [2018] KEHC 5488 (KLR
- UN Committee on the Rights of the Child, General Comment No. 10 (2007) on juvenile justice.
- PMK v Inspector General of Police & 2 Others (Constitutional Petition 10 of 2019) KHHC 486 (KLR).
- Re Jeffrey T., 140 Cal.App.4th 1015 (2006 ).