It's yet to be published anywhere online, and would be a long read if it was, but McConaughey revealed the 'Four Stages of Rustin Cohle' he discovered through the graph to Rolling Stone. In it, he details the three Cohles we see at the 1995, 2002 and 2012 flashbacks of the show, as well as 'Crash', "our deep, narco wild-ass" version of Cohle who worked as an undercover policeman while nursing coke and meth habits.