Finished it. Took me a lot longer than it should have. A lot of times, GD will tell the answer but the X wont appear on grave. Getting the way gilden and rosen were killed, in particular, was a pain. I found several sentences that said they were hung before finding the one that activate the X.
Needs a save feature and something to reward players who go through it all. It would be usefull if pressing the up key copy pasted the last sentence... and if the ingame copy paste feature didn't crash the game.