Police in Kayole were left puzzled after they found a slain suspect wearing bulletproof vest.
According to DCI Buruburu Jeremiah Ikiao, the suspect was robbing members of the public in Umoja Estate with an accomplice using a motor cycle.
Police on patrol were alerted by members of the public who pursued the suspects towards Kayole.
In the ensuing shootout, one suspect was shot dead while the other unidentified male escaped with gunshot injuries.
Police recovered a motorcycle registration number KMEB849S black in colour, one Walther pistol with five rounds and two bulletproof vests.
The body of the unidentified male was taken to city morgue awaiting post mortem and identification.