Restaurateur William Osewe, who owns the K’Osewe Ranalo Foods, has been shot and seriously injured in Kasarani near Roasters Inn.
He was shot in the stomach three times. One of the bullets exited and hit a guard on the leg.
Police say Mr Osewe was rushed to the AAR Healthcare at the Mountain Mall.
His vehicle, a Mercedes Benz, has been towed to Kasarani police station.
The attacker, Mr Oywa Mboya, a licenced firearm holder, has claimed that the victim confronted him first. He has since surrendered to the police and has been disarmed.
Sources say the two met earlier and even ate lunch together at a fish joint near Roasters Inn. After the meal, they started quarreling over a woman.