A forensic engineer has been retained in the defense of a Prescott man awaiting trial on one charge of negligent homicide and a number of assault, as well as drug charges, brought against him in connection with a November, 2012, two-car crash on Interstate 30 that killed a Franklin, Tenn., woman. Malvern attorney Louis Lloyd, representing John David Coe, 26, of Prescott, has retained William H. Ford, a forensic engineering expert from EFI Global, Inc., in Richardson, Texas, and has been granted access to Coe's 2002 Chevrolet Suburban by Eighth Judicial District-North Circuit Judge Randy Wright. In a motion filed April 18, Lloyd seeks to have Ford examine “the black recorder box on the 2002 Chevrolet Suburban” as “essential to the Defendant's defense of the criminal charge...” EFI Global, Inc., is a “full-service engineering, fire investigation, environmental, health and safety, and specialty consulting services firm serving a variety of industries in both the public and private sectors,” according to the company's website. The company's transportation services unit provides forensic services in collision reconstruction and vehicle failure analysis. Its collision reconstruction unit offers engineering services “to determine how or why a collision occurred and the various factors that may have contributed to it,” according to the website. Those investigations include collision site surveys and vehicle inspection, “...to determine impact points, collision forces and occupant interaction within the vehicle. “We also have the capability to download any available collision data from the sensing and diagnostic modules (SDMs) of domestic and selected imported vehicles,” the company website states. The company is a wholly-owned subsidiary of Cunningham Lindsey, a global independent insurance claims firm. Coe is charged with one count of negligent homicide; one count of first degree battery; two counts of aggravated assault; two counts of aggravated assault on family or household members; possession of a controlled substance (marijuana); and possession of drug paraphernalia in connection with the Nov. 16, 2012, death of Kathryn Nevil, 28, of Franklin, Tenn., and the injury of her two children, Will Nevil, 8, and Lauran Nevil, 12, also of Franklin, Tenn., in a two-vehicle crash on Interstate 30 in Hope. Eighth Judicial District-North Prosecutor Christi McQueen is seeking an enhanced charge against Coe as a “large habitual” offender, having been convicted of four or more felonies, on all the charges relating to the Nevil family. Enhanced charges are also being sought against him in connection with the injury of two children who were riding with Coe at the time of the accident.