Answer:
Frenchie begins to question his identity and role in the world after he's unable to save RiRi and shoots Travis for betraying them and bringing about RiRi's death. He also fails to recognize Minerva's sacrifice for what it was until it's too late.
Step-by-step explanation:
Her death at the hands of one of those men—Lincoln—is heartbreaking for the group because of her youth and innocence. Losing RiRi changes Frenchie irrevocably, as her death spurs him to kill a man for the first time. Frenchie's father Jean is a member of the Council who disappears early in the post-apocalyptic world. Her death is one of several things that motivate Frenchie to lead the group south to the resistance fighters.