Why does Shino have sympathy for Kyouji?

I just finished phantom bullet arc and it was my favorite so far but they seem in the last episode to want us to feel sympathy for him even though he nearly r*ped Shino. They give us a little backstory that he looked up to his big brother who was death gun and he lost sense of reality but idk how that means anyone should feel sympathy for him.

Idk how Shino feels sympathy for him

I did hear that LN explains backstory better but here he seems to just be bad.

I get they were friends for a while but is that the only reason

Edit: People have explained that we wasn't trying to r*pe her but a lovers suicide it was kinda hard to tell in anime