The prime suspect in Kware murders Collins Jumaisi Khalusha has escaped from Gigiri Police station.
Jumaisi was among 13 suspects who escaped from the police station.
The 12 others who escaped custody are Eritreans.
The incident happened on Tuesday morning.
Police came to know of it as they woke up the suspects in custody for morning tea.
They had cut a wire mesh that forms part of security to the cells and scaled a perimeter wall escaping.
Director of DCI Mohamed Amin confirmed the incident saying a fresh hunt had been launched on the suspect.
“It is unfortunate this has happened but we are pursuing the matter for action,” he said.
Top police officers rushed to the scene to get the news.
Jumaisi was a top and high-value suspect and had been remanded there pending plea taking on Friday.
Police were last Friday granted seven more days to detain three suspects including Jumaisi linked to the Kware killings.
The other two are Amos Momanyiand Moses Ogembo.
Jumaisi is said to have admitted to having killed up to 42 women. He denied the charges.
The suspects had been presented before Makadara Principal Magistrate Irine Gichobi where the prosecution sought the court to allow them to detain the three accused persons for 21 days.
After submissions from both parties, the court ruled that Jumaisi, who is the main suspect, be detained at Gigiri Police Station for seven more days.
The other two accused persons, Momanyi and Ogembo will be detained at Muthaiga Police Station for seven days until August 26 when the matter will be mentioned.
The investigating officer told the court that they have been able to identify six people from body parts recovered from the quarry, and they are likely to charge the suspects with the murder of the victims after the six files have been perused by the DPP for further guidance.