i cannot blame the mother for the girl's suicide.....she just reacted naturally to the sad situation.
there is nothing wrong with her saying "Have I not warned you not to go to Okwoyi village alone? Now three men have molested you and if you become pregnant, who will be the father of the baby?’.... she was only angry at her daughter for not listening to her advice.
At that time, the girl needed comfort, consolation and support and not blame, ridicule and judgement. A girl could be raped even outside such situation. That woman is ignorant and should ask God for forgiveness.