Jon Landau

Jon Landau - Senior Executive of Lightstorm Entertainment, Executive Producer of Avatar and the Avatar Sequels.
Oversaw the Development Department at Lightstorm.
Oversaw Development of KRZ.
Met with Ryder.
Received KRZ story drafts to his personal fax. 
Misrepresented under oath in his Deposition for Ryder v Cameron that he had not received KRZ to his personal fax and later had to retract and confirm that, yes, in fact he had.
Confirmed in his Deposition that yes, he quite well may have shared KRZ story elements with Cameron when asked for story ideas for the Avatar film.
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Ryder v. Lightstorm Entertainment & James Cameron
James Cameron Deposition 12/5/2012
Bates #003002
Q: Once you decided to turn your focus to the production of this movie, this movie being
Avatar obviously, were you in communication with Mr. Landau on almost a daily basis?
A: Literally a daily basis, seven days a week. Yes.
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Note 1) That Cameron actively solicited story ideas from Jon Landau and Emma Watts amongst others in order to address what Cameron considered fundamental flaws in the Avatar Scriptment. This is documented in emails.