NAIROBI, Kenya- Former Deputy President Rigathi Gachagua has claimed that two police officers linked to the murder of Dr Victoria Nthunya Mutiso were initially arrested but later released, alleging that the officers were subsequently facilitated to leave Kenya for Uganda.
Gachagua made the claim on Tuesday, August 11, 2026, while delivering an accountability statement on President William Ruto’s four years in office.
According to Gachagua, the two officers are Inspector Kenneth Kipkemboi Sang, formerly attached to Nderi Police Post, and Police Constable Bett Kiplangat Collins of Thogoto Police Post.
Gachagua alleged that the officers were arrested in connection with the investigation into Mutiso’s killing but were later released.
He further claimed that the two officers were subsequently facilitated to travel to Uganda, alleging that DCI Director Mohamed Amin was involved.
“The two police officers in the death of Dr Victoria Mutiso arrested, namely Inspector Kenneth Kipkemboi Sang officer in charge Nderi police post and Police Constable Bett Kiplangat of Thogoto Police Post are on the run and are currently in Uganda. They have been facilitated by DCI Amin,” Gachagua said.
The former Deputy President did not provide documentary evidence publicly to substantiate the allegation during his address.
DCI’s account
The claim comes against the backdrop of an ongoing investigation into the July 29, 2026 killing of Mutiso, a prominent mental health expert who was shot while travelling in an Uber vehicle in Nairobi.
The DCI has identified Sang and Collins as suspects in the murder investigation and says both officers are currently on the run.
According to DCI Director Mohamed Amin, Sang allegedly acted as a link between the alleged financiers of the murder and the execution team and is also accused of providing the firearm allegedly used in the killing.
Collins has also been forensically linked to the scene, according to investigators.
Another police officer, Police Constable Elijah Kibelion Kimoi, has already been arrested. The DCI has identified him as the officer who allegedly fired the fatal shots.
A court on Monday, August 10, granted investigators 30 days to hold three suspects in custody as investigations continued. The suspects are Kibelion, Daniel Njoroge and Kevin Kinuthia.
The DCI has also said investigations into the murder have made significant progress and that detectives are pursuing suspects who remain at large.
DCI rejects cover-up allegations
Gachagua’s allegations came hours before the DCI rejected claims that it had facilitated or concealed criminal activity.
In a statement issued Tuesday, the investigative agency described Gachagua’s allegations as “ridiculous, ill-intended and wholly without foundation” and challenged those making such claims to provide credible evidence.
The DCI maintained that its investigations are guided by evidence, the Constitution and the law, and denied that political affiliation influences criminal investigations.
“No individual is above the law,” the DCI said, adding that it would continue pursuing suspects linked to serious crimes.
The agency said it would not conduct investigations through the media or disclose sensitive operational information that could compromise ongoing investigations.
Gachagua’s claim therefore presents a direct dispute over what happened to the two officers named in the Mutiso investigation, with the former Deputy President alleging they were arrested and later released before leaving for Uganda, while the DCI’s public position is that the officers are wanted and remain at large.
The investigation into Mutiso’s killing remains ongoing.
