Guys, I've inspect the corpse sonner in the game WITHOUT the Surgical Tools and meet the Succubus.

So I've bought the Surgical Tools but don't show me any options to use them on the corpse!

So I can't blame the elf.

Already talked to the Elf's Boss (forgot the name)...

It's a bug or I missed something on the way?

Thanks in advance!

Did you turn the body over & examine the arm closely?

I think you can go back and re-examine it if you did not get all the clues. And yes, it is important to turn the body around to get all the possible clues.