When does Ramsay Bolton kill his stepmother and half-brother?
In the second episode of the sixth season of Game of Thrones ("Home"), Ramsay Bolton tricks his stepmother, Walda Frey, into going into the kennels with her newborn son (and Ramsay's half-brother), where the two are killed by Ramsay's dog.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: When does Ramsay Bolton kill his stepmother and half-brother?
### Input: 
### Response: In the second episode of the sixth season of Game of Thrones ("Home"), Ramsay Bolton tricks his stepmother, Walda Frey, into going into the kennels with her newborn son (and Ramsay's half-brother), where the two are killed by Ramsay's dog.