It seems to me that one of the pictures is a horizontal reflection of the other, looking at the curvature of the nose, the deformation of the bottom part of the middle of the nose with one side being lower and one ear sticking out (although to a different degree); perhaps even the hairline right above the eyes. The chin seems equal both ways. The eyes and eyebrows I don't recognize, but this could be because of the age difference or because the older man is frowning. Either that or a nice photoshop job.
Official: Top Burundi general assassinated in the capital (AP)