<Tr> <Th_colspan="2"> Episode chronology </Th> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> ← Previous "Sanctuary" </Td> <Td> Next → "With You I'm Born Again" </Td> </Tr> </Table> </Td> </Tr> <Table> <Tr> <Td> ← Previous "Sanctuary" </Td> <Td> Next → "With You I'm Born Again" </Td> </Tr> </Table> <Tr> <Td> ← Previous "Sanctuary" </Td> <Td> Next → "With You I'm Born Again" </Td> </Tr>

Who dies in season 6 episode 23 of grey's anatomy