Parking Lot Map

Why is dividing the crime scene into zones helpful to investigators and forensic scientists?

The Journal Record parking lot was considered “Grid 1,” and the parking lot diagram was part of the documentation for the evidence recovery log. It shows that each vehicle was given a number to track where pieces of evidence were found and processed. The agents in charge of the recovery process were FBI SA Alton L. Wilson and FBI Examiner Ronald L. Kelly. The diagram demonstrates the meticulous nature of collecting evidence in the days following the explosion.