A lot of people seemed to think that patrick ,a twin,
a split personality,and  alex jane maybe even danny jane
 might be red john....BUT  has anybody considered this
 posibility...PLASTIC SURGERY??? the frase  "  you don't
 know me but i know you " AND THE "i want to retire,get
myself a new face,new name new identity.i have the resources"
 got me thinking...what if patrick's other brother jimmy who
is supposed to be dead is alive and jane doesn't know it?what
if somebody related to him from his past changed his appearance?which
would explain the "happy memory"