My roommate's cat has stolen $50 worth of jewelry from me including this necklace

This is the same cat that liked to pee on my bed before I started keeping my bedroom door shut all the damn time. Justifiable peticide?
( PS SYTYCD spoilers )

This is the same cat that liked to pee on my bed before I started keeping my bedroom door shut all the damn time. Justifiable peticide?
( PS SYTYCD spoilers )