said by Transmaster :

would have been more then helpful if the FBI had not invaded the place like a bull in a china store. Core IP Networks could have had things setup so the FBI got what they wanted without disrupting the business's this data center serves.

said by RARPSL :

That assumes that the FBI felt that Simpson was not involved and was an innocent bystander. If he was involved, then asking him to help would be the wrong approach since he could hide or destroy the evidence. While I agree that the FBI screwed up by harming the other companies that were colo'ed there, I can see how they might want to assume the worst possible situation and not involve Simpson in their investigation.