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Evidence: Trace Evidence Analysis

Yoknapatawpha County Forensic Laboratory

DATE ANALYSIS PERFORMED:
 6/25/2004

 Madeline Holland, Ph.D.
 555 Jackson Avenue
 Oxford, MS 38655
 662-234-XXXX (FAX 662-234-XXXX)

 Analysis: Trace Evidence Analysis

REPORT OF TRACE EVIDENCE ANALYSIS

Case Description:
 Kristal B. Waterson Homicide

Investigative Agency:
 Yoknapatawpha County Sheriff's Department

Case #:
 001294-23E-2004

Investigating Officer(s):
 Det. T. Armtrong, Det. S. Murphy


Items obtained from the search of the residence and vehicle of Nathaniel Harrison "Hunter" Nelson were examined for trace evidence. The items analyzed included:

Item Description
001294-30 through 001294-35 Six (6) pairs of men's trousers, khaki, size 32"x33"
001294-36 through 001294-41 Six (6) men's oxford cloth button-down shirts, blue, size 15-1/2" neck, 32" sleeve
001294-42 One (1) baseball cap, white, Greek letters "Δ Τ Χ" on cap
001294-43 through 001294-45 Three (3) pairs men's athletic shoes, size 10
001294-46-001 One (1) pair men's running shoes, red and blue, size 10
001294-46-002 One (1) pair men's athletic shorts, dark blue, size M
001294-46-003 One (1) athletic supporter, size M
001294-46-004 One (1) pair men's athletic socks, white, size 10
001294-46-005 One (1) cotton men's t-shirt, dark blue with dark-colored stains, size M
001294-48 One (1) used latex condom
001294-49 One (1) 2"x3" swatch with suspicious stain
001294-H001 through 001294-H003 Three (3) long blonde hairs
001294-H004 through 001294-H010 Seven (7) short dark hairs visually consistent with pubic hairs

Findings

  • Items 001294-30 through 001294-45 and 001294-46-001 through 001294-46-005 were examined using an alternate light source.
    • For items 001294-30 through 001294-41, no hairs or other biological material were discovered.
    • For items 001294-42 through 001294-45 and 001294-46-001 through 001294-46-005, all hairs and other biological material discovered were microscopically similar to those of Nathaniel Harrison Nelson.
  • Item 001294-48 was swabbed internally and externally. The residue from the swabs dissolved in methylene chloride (organic) and water (aqueous).
    • The organic portion was analyzed by FT-IR revealing the presence of polydimethylsiloxane (PDMS) from the external swab.
    • The aqueous extract from the internal swab was analyzed for the presence of DNA. Insufficient quantities of DNA were found.
    • The aqueous extract from the external swab was analyzed for the presence of DNA and found to contain sufficient quantity and quality. The DNA was submitted for STR analysis.
  • Item 001294-49 was viewed with an alternate light source and found to contain possible biological material. The stain was negative for the presence of blood. Microscopic evaluation yielded the presence of epidermal cells. The quality and quantity of DNA present was sufficient, and the sample was submitted for STR analysis.
  • Items 001294-H001 through 001294-H003 were microscopically similar to those of the victim, Kristal B. Waterson.
  • Items 001294-H004 through 001294-H010 were analyzed microscopically. Comparison to the pubic hair of the victim revealed that:
    • 001294-H004, 001294-H005, 001294-H007, and 001294-H010 were microscopically similar to that of the victim's hair.
    • 001294-H006 and 001294-H009 were microscopically similar to those of Nathaniel Harrison Nelson.
    • 001294-H008 was not consistent with those of the victim or Nathaniel Harrison Nelson.

 

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