Published Tuesday, 17 December 2013
The man and woman were found in the living room of the flat. (© UTV)
The bodies of Finbar McGrillen, 42, and Caron Smyth, 40, were found in a flat at Ravenhill Court on Friday.
On Monday, a court granted PSN Serious Crime Branch detectives further time to question the 33-year-old, who was detained on Saturday.
Speaking at a press conference at the weekend, Detective Chief Inspector Una Jennings said the deaths are being treated as suspected domestic homicide.
A special incident room has been established at Musgrave Street PSNI Station and anyone with information is being urged to get in touch on 0845 600 8000.
© UTV News