Nairobi — Directorate of Criminal Investigations (DCI) detectives have apprehended one of the suspects believed to be linked to last week's murder of a DCI agent in Nairobi's Kayole area.

The August 8 incident which occurred in Mihango area also left the wife of the deceased cop shot in the leg when the motorcycle riding gang accosted the two made a stop to change a flat tire around 10pm.

The incident was captured by CCTV cameras positioned on adjacent building.

Detectives flushed Alex Wanjiru from his hideout in Kiambu's Ruthingiti following a stealth operation mounted by sleuths from the elite Crime Research & Intelligence Bureau based at the DCI Nairobi regional command.

"Alex Wanjiru, 23, who was part of the miscreant gang involved in the cold blooded murder of our colleague detective David Mayaka, had escaped from Kayole immediately after the incident and sought refuge at his grandmother's home in Ruthingiti, Kikuyu sub-county, before detectives tracked him down," said the DCI Tuesday.

Earlier, the detectives had impounded the motorbike used by the three-man gang.

Detectives say the arrest follow forensic investigations that placed the suspect and his accomplices at the scene of the incident.

The DCI revealed that a comprehensive analysis conducted by ballistic experts based at the DCI National Forensic Lab has since linked the firearm that fired the fatal shot to five previous robbery incidents in the City.

The agency further confirmed that they have identified the two other suspects involved in the heinous murder.

"They are the main suspect Henry Njihia who fired the shots that took detective Mayaka's life and John Kamau aka Faruk, who is also armed with a glock pistol," the agency stated.

Authorities have launched a man hunt for the two suspects.