– Detective Superintendent Richard Baker
Despite this latest development, the investigation continues and we still need to hear from anyone who has not yet come forward.
I want to reiterate that we're not looking for anyone else in connection with Christina's murder.
The family, who are still extremely distressed, have been kept up to date with the progress of the investigation. We continue to support them at this very difficult time.
Anyone with information to assist the investigation should call 101 or the independent charity Crimestoppers anonymously on 0800 555 111.