Police investigating the murder of a 34-year-old Cary mother searched her husband's Morrisville office last week.

Sources have confirmed to NBC17 that the office investigators searched was Brad Cooper's.

Full Coverage: Nancy Cooper Murder

Warrant information was sealed on July 21, meaning there's no public record of what officers were looking for or why, but the seal order does give the address.

The address listed is for R3-317 in Building #9 at the Research Triangle Park location of Cisco Systems Inc., where Brad Cooper has worked for the last eight years.

Police executed another warrant on July 25, although that seal order has no location noted.

These two new warrants follow up the original search warrant that police conducted on July 16, two days after Nancy Cooper's body was discovered a few miles from her house.

That original warrant allowed police to search the Coopers' home, cars and obtain DNA samples from Brad Cooper.

A hearing is scheduled for Thursday afternoon requesting that the sealed documents be made public.