Why not patrick Jane?
Yes Bruno ruled out the theory but still, can't he change his mind since nothing is written?

Why Patrick Jane?
How else would RJ access a happy memory of Jane?
How else would he know about the seven names Patrick kept in his journal, in his pocket, at all times?
Patrick "said" he locked himself for a week ... "asked" Lisbon not to be disturbed... Couldn't he have gone out during that "week" to plan and execute the kill?
Patrick "is" with Lisbon most of the time... Then again RJ has many people who work for him, who could do most of the dirty work for him...
How many other persons can persuade that many people (probably hypnosis) to such loyalty !
Well the smiley kind of looks like Jane's sad smile :).


Either THAT, or a person who has thaught Jane everything... His father, Alex.