I think so. It usually takes less than a week for high priority evidence to turn around. If a suspect is brought in for questioning or detained at the end of the week, it could mean that they did find something. However, I would be very surprised if any part of Suzanne was found at the construction site. Perhaps other evidence related to the crime was put at that location. I have no idea what that would be, as soft kill (such as strangulation) is so much cleaner in spousal homicide.