olivia's murder carried the sense of history repeating itself. the shooting provoked a strong reaction within this community. information flowed into the police in a volume detectives say they haven't experienced before. and they say some of those they'd expected to put up a wall of silence, chose to speak out. what we saw with this particular crime, with olivia's murder is... people were talking about a line being crossed and almost for those involved in crime, as though there is an acceptable level where you don't talk normally, that grass culture being embedded. what we saw with this crime is that lots and lots of people on both sides of that criminal line were wanting to come forward and speak to us. but until he was caught, thomas cashman was still terrorising some within the community. he was causing that fear and that intimidation and putting people off.