A specialised team investigating the assassination of Dr. Victoria Nthunya Mutiso, comprising detectives drawn from DCI Headquarters’ Crime Research and Intelligence Bureau (CRIB), Operations Directorate and Homicide Bureau, has made a further breakthrough, arresting three more suspects, in a coordinated operation spanning Nairobi and Kampala.

Acting on forensic analysis, the team proceeded to Kyanja Heights flats in the Nakawa suburb of Kampala. With the assistance of the Uganda Police Force, they arrested two suspects who had illegally sneaked into Uganda after the murder.

The two were identified as Police Constable Bett Kiplangat Collins, attached to Thogoto Police Station and Pius Muiru Mbugua, a civilian.  

Meanwhile, the National Police Service (NPS) acknowledged the professional support of the Uganda Police Force, whose cooperation made the raid, arrests and secure detention possible. 

The two suspects are held at Jinja Road Police Station pending an escorted return to Nairobi.

Earlier, the same investigation team intercepted a third suspect, Samuel Karanja Gathoni, also known as “Lawyer”, within the Langata Multi-Media area as he headed towards Ongata Rongai.

Investigations have established that PC Bett was tasked with surveillance and served as co-driver to Daniel Mwangi Njoroge, a central organiser of the operation and driver of the Land Cruiser Prado registration KDH 600A. That vehicle was used to box in the Uber in which Dr. Mutiso was travelling on the morning of 29 July 2026 in Upper Hill, Nairobi, moments before she was fatally shot.

Detectives have further established that Pius Muiru Mbugua was a key link between the execution team and the person who contracted them. Mbugua served as paymaster, moving money for logistics and the movement of the hit team.

The suspects arrested in Uganda are being prepared for escort to Kenya, where all three will be processed and arraigned in accordance with the law. 

At the same time, the DCI expressed sincere gratitude to the family, friends and relatives of Dr. Mutiso, and to members of the public, for the overwhelming patience and steadfast support they have extended to detectives. 

“That confidence made these investigations possible at a time when some political actors, hungry for cheap political mileage, chose to flood the airwaves with reckless, inflammatory and unsubstantiated claims. They peddled propaganda and rumour that the suspects had been arrested and quietly released, and that security officials had facilitated their escape. Those assertions were false,” read part of the DCI report.