Genre: Reality, Crime
Premise: Eagle-eyed technical experts prove there is no such thing as a perfect crime as they assemble the pieces every criminal leaves behind. Dramatic crime re-creations and, sometimes, part of the investigations are a staple of the series. Some of the re-creations include alternate versions of the crimes, which are disproved by science. The show's episodes follow each case from the initial investigation until it reaches its legal resolution.
S13, E53 (First Aired: Jul. 30, 2010)
Evidence that includes threatening emails, a missing person and an abandoned truck lead police to what they believe is a killer, but they don't have the body of the victim.
S13, E54 (First Aired: Aug. 13, 2010)
A woman has an accidental fall down a flight of stairs and looks to have hit her head, but the lack of blood splatter and misplaced shoes lead police to believe that the fall was staged.