The job was finished before sunrise.
At the time, the workers had no reason to suspect anything unusual. However, when investigators compared the timestamp on the invoice with the timeline of Nancy’s disappearance, the service suddenly appeared far more significant.
The pumping occurred within a critical window of time when detectives believe key events may have taken place.
Authorities soon obtained a warrant to examine the septic system.
Because the tank had already been emptied weeks earlier, investigators faced a difficult challenge: determining whether any physical evidence remained inside the plumbing network.
Forensic specialists were brought in to conduct a detailed search.
