Detectives hunting the murderer of mother-to-be Nikitta Grender want to trace four people captured on CCTV who might hold vital clues to the killing.
The heavily pregnant teenager, 19, was found dead in the bedroom of her burnt-out flat in Broadmead Park, Liswerry, Newport, South Wales, on February 5.
What appeared to be a tragic accident rapidly turned into a murder investigation when police revealed she had been stabbed twice.
Miss Grender and boyfriend Ryan Mayes, 18, moved to the flat six months ago and had decorated a room in preparation for the birth of daughter Kelsey-May.
On Wednesday police arrested a 26-year-old man on suspicion of murder. He was later named locally as Carl Whant, Mr Mayes’s second cousin.
On Thursday police were granted an extra 12 hours to question the former soldier, who now works as a bouncer at nightclubs in Newport.
His arrest followed news of a potential breakthrough by police, who recovered two knives during an exhaustive search of the estate.
Both have been sent away for forensic examination.
Now police believe four members of the public captured on CCTV on the night of the murder may possess vital evidence in the case.
A Gwent Police spokesman said: “Officers investigating the murder of 19-year-old Nikitta Grender want to trace four people captured on CCTV from in and around Broadmead Park, Moorland Park and Pontfaen areas.”