The man and two accomplices are alleged to have attempted to rob a family that was having a braai at a Klein Windhoek mountain.
The police's regional commander in Khomas, commissioner Ismael Basson, confirmed the incident.
The family was robbed of a cellphone, wallet and N$10 note.
With one of the alleged robbers fatally shot, another of the assailants was wounded when he, too, was shot. The police have arrested him and he is receiving treatment in a Windhoek hospital.
The third suspect is still at large.
