Hi guys!
I just realized something. Lets be a bit linguistic now. His name is J. J. Laroche, it sounds a french name to me. Maybe is an artificial name, which can be the key to know his real name ( Red John).
J can stand for John, but there is two of J, so John John Laroche. Do you remember the Blake poem? Tiger, Tiger... --> J.J.
It is just a theory, but what made me write this theory is the second part of his name: Laroche, or La Roche, it sound french, so better say Le Rouge, which means " The Red", so basically his name means John, John, the Red ---> Tiger, tiger, burning bright.....
This cant be a coincidence. I hope you share my opinion. Sorry for my bad english and if anyone have already wrote this. But please comment :)