Who struck the last blow to lkemefuna and why?

Ikemefuna, a character in Chinua Achebe's novel "Things Fall Apart," was struck the last blow by Okonkwo, his adoptive father. Despite having grown fond of Ikemefuna, Okonkwo killed him to avoid appearing weak and to adhere to the tribal customs that demanded his death as a sacrifice. This act ultimately symbolizes the conflict between personal affection and societal obligations, highlighting Okonkwo's tragic adherence to rigid masculine ideals.