Although two individuals are serving a life sentence in connection with this murder, we have always known there were other people involved in the attack ...
It is hoped this appeal will assist with our inquiries.
We believe there were people in the area that night who may have seen something. Not the murder itself necessarily but events or individuals leading up to the event.
I am taking this opportunity to appeal directly to those people to come forward and speak to us. You may think you won't remember something from so long ago, but we would still implore you to come forward.
More top news
Charlie Gard, the baby boy whose fight for life captured the attention of the world has died, his family has confirmed.
A Royal Marine who lived a "dangerous double life" as a terrorist bomb-maker claims he faked Irish Republican sympathies out of fear.
An independent review into building regulations and fire safety has been announced as 82 tower blocks failed a new fire safety test.