Documentary re-examining the case of Jill Dando's murder, the BBC presenter who was mercilessly shot dead as she entered her Fulham home in April 1999. Two years after her death, Barry George was found guilty of her murder, but following a dramatic retrial in 2008, he was acquitted and released from prison. Now more than 20 years on, this programme looks back at some of the unanswered questions surrounding the case.

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