Question: asoiaf who killed little walder?
Answer: Snow slid from Ser Hosteen's cloaks as he stalked toward the high table, his steps ringing against the floor. A dozen Frey knights and men-at-arms entered behind him. One was a boy Theon knew—Big Walder, the little one, fox-faced and skinny as a stick. His chest and arms and cloak were spattered with blood.