A murder investigation is underway after the death of a man in the Roath area of Cardiff in the early hours of this morning.
An area of Calude Road is still cordoned off and police wish to trace a man who was seen in nearby Oakfield Street at around 2:45am this morning.
The man seen running in the direction of Newport Road has been described as white, wearing a light-coloured hooded top and trainers.
Police are also appealing for information from anyone who saw or heard anything suspicious in Claude Road and Oakfield Street areas this morning between 1am and 3am
A major incident room has now been set up at Cardiff Central Police station.
Anyone with information is asked to contact the Police on 02920 571530 or Crimestoppers anonymously on 0800 555 111.
Sion Jenkins, who spent six years in jail for killing his foster daughter before being acquitted, is calling for a fresh investigation of the murder.
Mr Jenkins, whose family come from Aberystwyth, was speaking on ITV1's Daybreak this morning.
"I'm not simply focusing on the Mirror story" he said. "I think it was a good piece of journalism, and there are elements that should be looked at. But I'm not simply pointing the figure at that individual, or actually anyone."
The former deputy headteacher said a new investigation should take a broad view, insisting that "the key to opening the case" lies in "the tens of thousands of sheets of paper and evidence" already collected.
Sussex Police said they are not linking Imiela with any inquiry and there are no plans to reopen the Billie-Jo investigation without any new lines to examine.