If Arturo was the only one who could identify Soze... (spoilers)
...and Soze kills him, thanks to the diversion created by Keaton et al. when they battle the Hungarians and search for non-existent cocaine, why does Soze let Kujan live? Or are Kujan's days numbered as well?
If Soze's whole motivation in creating this elaborate scheme is to kill Arturo because he is the one person who can identify him at trial, why would simply "disappearing" again be enough for Soze to end this story? Kujan has pieced it all together, so a loose end is still hanging...
Thoughts?