The goal of Discovery Channel's Nov. 16th special, "JFK: Inside the Target Car," was to explore the theories and determine where the shots most likely came from using modern forensic science.
A mock-up of the Dallas, Texas crime scene was set up, including the depository, the "grassy knoll," and other nearby landmarks. Artificial surrogates of Kennedy were placed in a car. Sharpshooters then shot the surrogates from the model depository, the grassy knoll, and four other plausible locations.
Schliebe, along with Tom Bevel, an independent expert forensic investigator, were brought in to examine the simulated crime scene. Both scientists had no idea what the experiment was for or that it was a reenactment of the JFK assassination.
The two experts found a simulated gunshot would to the head that closely matched the wound Kennedy suffered. Most of the simulated body material had spattered forward into the car, consistent with a shot that entered the back of the head and exited toward the front. There was some back-spatter — material that flew back in the opposite direction of the bullet's trajectory — but not much.
The general lack of back spatter and the preponderance of spatter in another direction are two of the clues, among others, that the investigators used to pinpoint the origin of the shots.
Tech puts JFK conspiracy theories to rest - Discovery.com- msnbc.com