I am your son, I have always been your son
I broke a sacred oath and stabbed my king in the back. I killed my own cousin. When the gods judged my brother guilty, I helped him escape their justice
Now let's say I threatened to hit you unless you shut your mouth, but you kept talking. What do you think I'd do?
I killed my mother Joanna Lannister on the day I was born. I killed my father Tywin Lannister with a bolt to the heart