How are the events of Chapter 9 connected to Ikemefuna's death in the previous chapter?

Ekwefi has had ten children. Nine have died yet Okonkwo is willing to sacrifice his prized adopted son for little more than a half-baked prophesies. Okonkwo is really afraid of looking weak but, by killing ikemefuna, the community actually sees Okonkwo as a cruel and scared little man.

Alright so we realize that he had sacrificed his child ikemefuna which he cherished profoundly yet never conceded in light of the fact that he would not like to appear to be powerless right, so during part 9 we discover that ezinma is biting the dust and this brought back recollections from ikemefuna's death,this driven him feel futile and mad that he was unable to help ezinma, and helped him to remember his lament of slaughtering his child. which remained with him and always remembered.