Last week, Mr Kang’ethe, 40, made a daring escape from Muthaiga Police Station where he was being held.
Detectives had also arrested and locked up a Nairobi-based lawyer in connection with Mr Kang'ethe's escape.
A brother of fugitive murder suspect Kevin Kinyanjui Kang’ethe was nabbed by detectives attached to the Directorate of Criminal Investigations (DCI) on Tuesday and questioned over his bold escape from lawful custody.
The detectives also went ahead and arrested his brother's girlfriend, who was also grilled over the escape as DCI sleuths work round the clock to trace his whereabouts.
