Hello folks,
1st - the first mention to "A Childhood Memory" was made by Jane to Lisbon
2nd - Jane knows that Red John is egocentric and wouldn't lose the opportunity to be a step head and show that. 

3rd - Red John used the exactly same word "Childhood Memory" in the video.
Considering
the theory that Lorelei is alive Patrick Jane could've used the "a
happy memory from childhood " to test the loyalty of Lisbon and her
contacts, so after all it confirmed 1 thing, Lisbon is on touch with Red
John consciously or unconsciously.

Since she promised to report everything about the
case to Bob Kirkland and Gale, maybe she told Bob, who kept lorelei
Alive and used her to record a video of the list (since he stole
it!!!!), also used the opportunity to "I'll kill a happy memory".


Pls thoughts...