Five suspects charged with the murder of prominent Nairobi lawyer Matthew Kyalo Mbobu have denied the charges, as investigators pursue a police inspector suspected of involvement in his killing and that of Dr Victoria Nthunya Mutiso.
The suspects pleaded not guilty at the Kibera High Court on Tuesday, October 27, 2026, more than a year after Mbobu was fatally shot along Magadi Road in Nairobi.
Those charged are Rose Mbithe Mulwa, her children Chris Mulwa and Angela Mulwa, and police constables Julius Kipkoech Cheruiyot and Kennedy Kipkemei Borboroi.
They are accused of jointly murdering Mbobu on September 9, 2025, at around 5.30pm near Brookhouse International School in Karen, Nairobi.
The plea-taking comes as the Directorate of Criminal Investigations (DCI) investigates the alleged involvement of police inspector Kenneth Kipkemboi Sang in the lawyer’s murder and the separate killing of Mutiso.
On Monday, October 26, a Nairobi court granted detectives 14 days to detain Sang to allow them to complete investigations before deciding on the charges to be preferred against him.
Sang was arrested in Eldoret, Uasin Gishu County, on Saturday, October 24, following an intelligence-led operation. He was subsequently transferred to Nairobi and detained at Kilimani Police Station.
The DCI sought additional time to interrogate the officer, record his statement, conduct searches, pursue possible recoveries and facilitate a mental assessment before proceeding with the case.
Investigators told the court that ballistic examinations linked ammunition recovered at the scene of Mutiso’s killing to a Mini Jericho pistol, serial number 47302127, which they said had been issued to Sang.
Mutiso, a clinical psychologist and mental health researcher, was fatally shot in Upper Hill, Nairobi, on July 29, 2026. Detectives are investigating whether Sang played a role in her killing and Mbobu’s death.
In the case involving Mbobu, investigators allege that Sang played a role in planning the lawyer’s murder. He has not yet been charged in connection with the two killings, and the allegations against him remain subject to investigation.
Mbobu was a prominent lawyer, university lecturer and author. His death triggered investigations that led to the prosecution of the five suspects now facing murder charges.
The investigations into the two killings remain ongoing as detectives seek to establish the full circumstances surrounding the deaths and determine whether other individuals were involved.
