A 39-year-old remains in police custody on suspicion of the murder of Chrissy Burns at Mountnorris.
And police are continuing to appeal to witnesses and anyone with information useful to enquiries to get in touch.
Detectives from the PSNI’s Major Investigation Team launched a murder inquiry following the death of 40-year-old Mr Burns on Thursday.
The deceased, who was originally from the Warrenpoint area, was found dead at an address in the Cusher Green area after police received a report at around 11.30am of a concern for safety.
Officers and colleagues from the Northern Ireland Ambulance Service attended the property but Mr Burns was located deceased at the scene with serious head and facial injuries.
Detective Chief Inspector Gary Robinson said: “Our thoughts are with Mr Burns’ family and loved ones at this distressing time as they try to come to terms with their tragic loss.
“A man, aged 39, who was arrested on suspicion of murder, remains in police custody.
“Our team continues to work at pace to establish the circumstances surrounding Mr Burns’ death and I would reiterate our appeal to anyone who may have information that could assist us, to contact police on 101, quoting reference number 573 04/09/25.
“Alternatively, you can submit a report or information online using the non-emergency reporting form via www.psni.police.uk/makeareport/, or contact Crimestoppers anonymously on 0800 555 111 or online at www.crimestoppers-uk.org/.”
Photos and footage – including CCTV, mobile phone or dashcam footage – can be shared with police through the Major Incident Public Portal at https://mipp.police.uk/operation/PSNI25U20-PO1
