The only reason that I thought it could be Dean was after Shaz told Stacey that Dean was the father. I thought that maybe he raped her too and that he could have tried to rape Lucy but she fought him off.
The Shabnam baby storyline was a bit out of the blue wasn't it and I read somewhere that the producers had changed their minds about 'who dun it'. Anyway I reckon it will be whoever the producers want to get rid of or possibly a minor character. Left field guess the policeman boyfriend of Emma ( can't remember his name, Connor was it)
I can't remember if it was him ummmmmm but I think you might be on to something. Like you Margot I think this whole story line is a bit of an after thought.
Think we should start a 'book' on Lucy's killer. I'm still going with Emma's ex fiancé . Cameron Bryant ( not Connor, I've just looked him up) Who do you think?
If her music box was the last thig she heard, then she would have died at home or at least been unconscious, which means her body was moved, ergo someone with access to a car and who could drive!!!! Ian? Peter? or a friend in her house???