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Yoknapatawpha County Forensic Laboratory

DATE ANALYSIS PERFORMED:
02-25-2010

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

Analysis: Forensic Analysis

 

REPORT OF FORENSIC ANALYSIS

Case Description:
Spenser Brooks Homicide

Case #
0000161-24A-2011

Investigative Agency:
Yoknapatawpha County Sheriff's Department

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

Trace Evidence Analyzed from Spenser Brooks’ Automobile

The following trace evidence was recovered from the victim’s automobile at the crime scene on 01-31-2011 and analyzed with results as shown:

0000161-24A-32 – Hair Samples

0000161-24A-32-a - 0000161-24A-32-j

Description

Ten (10) hairs, ranging in length from 0.83 to 1.5 inches. One (1) bulb is at the anagen stage, with intact follicular material. Bulbs of the remaining hairs indicate three (3) at the catagen stage and seven (7) at the telagen stage. Medullar index of .3 and imbricate scales on cuticle indicate human origin. Appearance indicates hairs are from the head and were not forcibly removed. Round cortex and chestnut pigmentation are consistent with a Caucasian. Microscopic comparison indicates a match with hair sample from the decedent, Spenser Brooks.

Chemistry

GC-MS analysis found no indication of long-term drug or alcohol abuse.

DNA Analysis

Nuclear DNA extracted from follicle matches the decedent.

0000161-24A-32-k - 0000161-24A-32-n

Description

Four (4) hairs, ranging in length from 2.7-5.2 inches. Bulbs indicate one (1) at the catagen stage and three (3) at the telagen stage. No follicular material was recovered. Medullar index of .3 and imbricate scales on cuticle indicate human origin. Appearance indicates hairs are from the head and were not forcibly removed. Round cortex and original brunette pigmentation are consistent with a Caucasian. Condition and appearance of hair indicates it has been repeatedly dyed a dark brown color.

Chemistry

GC-MS analysis found no indication of long-term drug or alcohol abuse.

DNA Analysis

Mitochondrial DNA extracted from hair shaft produces a negative result when compared with existing samples and CODIS database.

0000161-24A-32-o - 0000161-24A-32-t

Description

Six (6) hairs, ranging in length from 1.3-3.0 inches. Bulbs indicate one (1) at the anagen stage, two (2) at the catagen stage and three (3) at the telagen stage. No follicular material was recovered. Medullar index of .3 and imbricate scales on cuticle indicate human origin. Appearance indicates hairs are from the head and were not forcibly removed. Round cortex and chestnut brown pigmentation are consistent with a Caucasian.

Chemistry

GC-MS analysis found no indication of long-term drug or alcohol abuse.

DNA Analysis

Mitochondrial DNA extracted from hair shaft produces a negative result when compared with existing samples and CODIS database.

 

0000161-24A-32-u - 0000161-24A-32-aa

Description

Seven (7) hairs, ranging in length from 3.8 - 13.3 inches. Bulbs indicate one (1) at the anagen stage, one (1) at the catagen stage and five (5) at the telagen stage. The remaining two (2) hairs were partial remnants without bulbs. No follicular material was recovered. Medullar index of .3 and imbricate scales on cuticle indicate human origin. Appearance indicates hairs are from the head and were not forcibly removed. Round cortex and blonde pigmentation are consistent with a Caucasian.

Chemistry

GC-MS analysis found no indication of long-term drug or alcohol abuse. Trace amounts of alcohol-based perfume were detected.

DNA Analysis

Mitochondrial DNA extracted from hair shaft produces a negative result when compared with existing samples and CODIS database.

0000161-24A-33 – Fiber Samples

0000161-24A-32-a - 0000161-24A-32-m

Description

Thirteen (13) fibers, ranging in length from 0.25-1.3 inches, grey in color. Microscopic analysis indicates fibers are synthetic and a common polyester blend. Comparison indicates a match with carpet sample from office of decedent, Spenser Brooks.

Chemistry

GC-MS analysis resulted in no trace chemical or drug residue.

0000161-24A-32-n

Description

One (1) black thread, 2.3 inches in length. Microscopic analysis indicates thread is dyed cotton. Microscopic comparison indicates a match with item 0000161-03, the black jacket worn by the decedent.

Chemistry

GC-MS analysis resulted in no trace chemical or drug residue.

0000161-24A-32-o - 0000161-24A-32-s

Description

Five (5) fibers, ranging in length from 0.3 to 0.7 inches, beige in color. Microscopic analysis indicates fibers are synthetic and a common polyester blend. Comparison indicates a match with a sample taken from the decedent’s residence.

Chemistry

GC-MS analysis resulted in no trace chemical or drug residue.

 

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