I killed everyone in the underground hideout and the artist still lived.
But he was so freaked out, he just said something like " Please, don't hurt me. "
or something and I could not even dialogue with him.
That is the moment when you just grab someone at the collar and slap them until they listen.
" WE FREED YOU, YOU CAN GO NOW, KAY? "
I cast "Friend" on him and everything, he wouldn't calm down.
Wow, I'm just super impressed that you could keep him alive!! That entire area turns into a giant fireball of death almost instantly!