(When asked about when he knew he was going to kill off Robb and Catelyn)

“I knew it almost from the beginning. Not the first day, but very soon…. I killed Ned in the first book and it shocked a lot of people… The next predictable thing is to think his eldest son is going to rise up and avenge his father. And everybody is going to expect that. So immediately [killing Robb] became the next thing I had to do.”