The Glenarm farmhouse in which two men died on Friday has been burgled, police said.
Arthur Gibson and Michael Murphy were found shot dead on Friday.
Police, who said they were not seeking anyone else over the deaths, are now appealing for information after the house in Feystown Road was burgled sometime between 3pm on Sunday and 7.30am on Monday.
A PSNI spokeswoman said: “Officers concluded their examination of the scene yesterday, secured the premises and left. Police had earlier recovered a firearm at the scene and removed a number of other items from the premises. A report is being prepared for the Coroner.”