Medical examiners searched the home Monday after a civilian contractor working on the premises found clothing they thought was suspicious, Durham police said.
The contractor called the police.
The house is now occupied by other residents and the items did not belong to them. Police did not say exactly where the items were located or how many items were collected.
Strong was convicted of first-degree murder last year in the death of 18-year-old Rori Hache, who disappeared in August 2017. He was also convicted of involuntary manslaughter in connection with the death of Kandis Fitzpatrick, who was last seen in 2008.
Fitzpatrick had been missing for years, although investigators had found evidence that she had died. They finally found her remains last February.
