I think he meant more about the reason of why she killed him, maybe?
But isn't the reason is obvious that she wanted to kill him to avenge her family? There is something more about the situation in the past that we saw. I wondered if she was not the one who killed him but his stepfather?
I'm confused... Do Ha asked Young Hwa to help him to find out how he died. So that means the scene that Han Ri Ta slit his throat was not what actually happened? Was it just his assumption/guess that she killed him?
Since Hwa Rok doesn't have any experience writing crime mystery novels, I have a hunch she'll need Soon Deok's brother Lieutenant Jung's expertise to give her writing input and advice 😉😉😉