Overall a good documentary series but it gets hijacked towards the end by a couple of contributors peddling their political agendas. Yes the police made horrible blunders and judgements but the idea it was all some male conspiracy is over the top. The contributions by the people at the centre of the story - the victims' families, the survivors and the police officers are fascinating and often heartbreaking. The emphasis on the women who died rather than the murderer is welcome too.