The Directorate of Criminal Investigations (DCI) has announced a major breakthrough in the investigation into the fatal shooting of renowned clinical psychologist and mental health researcher Dr Victoria Nthunya Mutiso. Detectives have taken two persons of interest into custody as forensic investigations continue into the shocking killing that has left Kenya’s research and medical communities in mourning.
Highlights
- DCI has arrested two persons of interest over Dr Victoria Mutiso’s murder.
- Detectives have recovered exhibits currently undergoing forensic analysis.
- Dr Mutiso was shot dead while heading to work in Nairobi’s Upper Hill.
- Investigators believe the attack was carefully planned and executed.
- The identities of those in custody remain undisclosed to protect investigations.
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Two Persons in Custody
The Directorate of Criminal Investigations has confirmed that two individuals are being held as investigations gather pace into the murder of Dr Victoria Mutiso.
According to the agency, homicide detectives have made significant progress after carrying out searches at locations linked to the suspects, questioning witnesses, and collecting evidence believed to be crucial to the case.
The two individuals are currently undergoing interrogation as detectives work to establish their possible involvement in the fatal shooting.
Authorities have withheld their identities, explaining that revealing them at this stage could compromise the ongoing investigation.
Evidence Under Forensic Examination
Investigators disclosed that several exhibits were recovered during operations conducted at premises connected to the persons of interest.
The items have since been handed over to forensic experts for detailed examination as detectives seek to piece together what happened before, during, and after the attack.
The DCI says specialized investigative teams remain committed to ensuring every lead is thoroughly examined.
Fatal Attack in Upper Hill
Dr Victoria Mutiso was gunned down on Wednesday, July 29, 2026, while travelling to her workplace at the Africa Institute of Mental and Brain Health (AFRIMEB) in Nairobi’s Upper Hill.
Preliminary investigations indicate the attackers may have used both a motorcycle and a vehicle during the operation.
Witnesses told investigators that the vehicle allegedly blocked the taxi carrying Dr Mutiso before gunmen opened fire in what authorities suspect was a carefully coordinated attack.
She was rushed to Kenyatta National Hospital for emergency treatment but was pronounced dead on arrival.
A Respected Mental Health Expert
Dr Mutiso was widely respected for her contribution to mental health research and clinical psychology in Kenya. Through her work at AFRIMEB, she played a leading role in advancing research on mental health, youth wellbeing, and community-based interventions.
Her death has sparked widespread grief among colleagues, health professionals, researchers and Kenyans who viewed her as a passionate advocate for improving mental healthcare across the country.
As detectives continue piecing together the events behind Dr Victoria Mutiso’s killing, many Kenyans hope those responsible will be brought to justice while preserving the legacy of a woman who dedicated her life to improving mental health.
