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who dies in the season finale of grey's anatomy
In the season 8 finale of Grey's Anatomy, six doctors from Seattle Grace Mercy West Hospital are victims of an aviation accident, but Dr. Lexie Grey ultimately dies.
who played lexie in grey's anatomy
Chyler Leigh portrayed Dr. Lexie Grey on Grey's Anatomy
did sloan die on the season finale of grey's anatomy
Dr. Mark Sloan died during Season 9 of Grey’s Anatomy.

Question: which episode
Self-contained rewrite: which episode did Dr. Mark Sloan die in during season 9 of grey's anatomy