Question: What Killed Mark Sloan?

Did the person who played Mark Sloan actually die?

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How did Mark and Lexie die in GREY’s anatomy?

Does Derrick cheat on Meredith?

Who all dies in GREY’s anatomy?

Why did Derek get killed off?

Why did they kill off Lexie?

How did Arizona Robbins die?

Does Izzie Stevens die?

Why did Sandra leave GREY’s?