By Robert Mutasi 
Detectives say Inspector Kenneth Kipkemboi Sang is suspected of coordinating operations linked to the two killings as investigations continue.
A police inspector who had been on the run in connection with the murders of Nairobi lawyer Mathew Kyalo Mbobu and clinical psychologist Dr. Victoria Mutiso has been arrested in Eldoret, Uasin Gishu County.
Detectives from the Directorate of Criminal Investigations (DCI) arrested Inspector Kenneth Kipkemboi Sang on Saturday, Oct. 24, 2026, following an intelligence-led operation in the town’s central business district.
According to the DCI, detectives intercepted Sang along Uganda Road while he was driving a silver Toyota Fielder. Investigators believe the officer had been attempting to sell the vehicle to raise money for his upkeep while evading arrest.
The suspect was taken to Eldoret Police Station for processing as detectives continued investigating the two murders.
The arrest marks a significant development in investigations into the deaths of Mbobu and Mutiso, which occurred about 10 months apart. Investigators suspect Sang played a role in coordinating the attacks, although the allegations against him must be established through the legal process.
The DCI said detectives were pursuing additional leads to establish the full circumstances surrounding the killings and determine whether other people were involved.
“No rank, status or affiliation places anyone above the law,” the agency said, according to the published report.
Mbobu, a prominent lawyer, university lecturer and former chairperson of the Political Parties Disputes Tribunal, was shot dead on Sept. 9, 2025, while driving along Magadi Road in Nairobi.
Investigators described the attack as a targeted shooting carried out by a gunman riding a motorcycle. The case remained unresolved for months as detectives sought to identify those who allegedly planned, financed and executed the killing.
In September 2026, detectives announced a breakthrough following the arrest of Police Constable Julius Kipkoech Cheruiyot, who is suspected of being the gunman. The DCI also said ballistic examinations linked a Ceska pistol issued to the officer to Mbobu’s killing.
Mutiso, a clinical psychologist and mental health researcher, was shot dead on July 29, 2026, while travelling in a vehicle in Nairobi’s Upper Hill area.
Her murder investigation has drawn attention to a long-running property dispute involving her husband, Professor David Musyimi Ndetei, and his former wife, Rose Mbithe Mulwa.
Detectives are investigating whether the dispute over the property provided a motive for the two killings. They suspect different individuals may have played separate roles in planning and coordinating the attacks.
However, the alleged connection between the cases and the individual responsibility of those under investigation remain matters for investigators and the courts to establish.
Sang’s arrest follows months of efforts to trace him after investigators linked him to the alleged coordination of the attacks. His detention is expected to help detectives examine his suspected role and possible connections with other people under investigation.
The probe has also raised concerns about allegations that serving police officers were involved in the killings.
The DCI has said investigations remain ongoing as detectives work to establish the full circumstances of both deaths and determine whether additional suspects were involved.
The arrest does not amount to a conviction, and Sang remains entitled to the presumption of innocence unless proven guilty in court.