Hetti Bywater as Lucy Beale
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EastEnders killer ... and 30 years of Walford

The first two shows of EastEnders 30th anniversary have revealed to viewers who killed Lucy Beale.

Newsnight's Stephen Smith looks at the big reveal - and at the show's history.

SPOILER WARNING: This clip reveals who killed Lucy - do not watch if you have not seen Thursday's episodes.

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