But he says the seal order for a search warrant at Cisco systems says a lot.
Sources tell Eyewitness News the address listed on the seal order --a specific office in building 9 at 71 Kit Creek Road --is Brad Cooper's office.
That search took place out of the public eye and Knudsen says it means more than the earlier search.
"In order to even acquire a warrant to search a separate place connected to an individual there has to be probable cause for a judge to believe that that individual was connected with the commission of an offense and evidence would be found there," he said.
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"It's pretty clear now that he's a suspect. Not just a person of interest, but a suspect," Knudsen said.
Also a third warrant has been issued in the case. And the order sealing it does not describe where or who it was for, only that it regards the Nancy Cooper homicide investigation.
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A hearing on unsealing the search warrant in the case will be held Thursday.
http://abclocal.go.com/wtvd/story?section=news/local&id=6294423