Excellent stuff! In the theater discussion, it appears Holmes purchased the ticket to the movie many months in advance. He had an avid interest in the upcoming dark Knight returns movie. His grades begin to slip around the same time. His presentation on temporal illusion demonstrated his knowledge of the subject and the procedure. His psych saw/ heard, was told something that caused her concern.
from Cariis above-
The "disorder" disguised by intellect and official high level research, went unnoticed for what it was until very late in the transformation from Holmes to joker.
Holmes appears to have struck upon a character figure to use for his intended purpose. I get the impresion he would have been well aware the hold the character had on Letcher previously. Holmes works at McDonalds home of Ronald McDonald for unknown reasons. He was being paid and according to reports no student in thios program would be able to hold a part time job given the course curriculum. In relation here you find a strange article. The stage was already set?
http://www2.wspa.com/news/2012/jul/20/batman-comic-book-connection-colorado-shooting-ar-4176672/
The date of the above corresponds with the date of Holmes presentation on temporal illusions. A virtual presentation of what was about to come.
The Dark Knight Returns was proceeded by an article near the time Holmes would have to have purchased his ticket.
http://urbandweeb.com/dweeb-news/ronald-mcdonald-set-to-replace-heath-ledgers-joker-in-batman-3/
Ronald McDonald set to replace Heath Ledger’s Joker in Batman 3
The Dark Knight Rises... via temporal illusion.. This is his thesis?