Purrfect Match Case Study: Solving a Homicide Mystery
CSI Unit Training Materials
T. Tomm 2007 Updated 2023 https://sciencespot.net/
Complete the slide as we
watch the video.
T. Tomm Updated 2023
https://sciencespot.net
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The student digital slide is available atsharing9zQXrosxnBQhDRP4_bbjSDFRQa3NR99g/edit?usp=https://docs.google.com/presentation/d/11sGFrmf3tUP
IMPORTANT: Make a copy of the student notebook
before you assign it on your LMS. It is view-only and I
am not able to approve access outside my own
students.
The full student digital notebook (with all the slides for
the digital lessons and activities) is available at
. It is set up for standard paper (8.5x11) in
landscape mode for easier printing when needed.haringMsDyuUxiEsSM2m4YOAtIlfmD4O4YsLdPI/edit?usp=shttps://docs.google.com/presentation/d/14eIEiGacRX
A DRAFT of the general outline of the digital lessons
(with corresponding slide #s for the student notebook)
is available at
. It is based on 44-minute class
periods with 7
th
& 8
th
grade students.9mA/edit?usp=sharinguHQPXDKOxmZXtU_gxy9dphEuyC1P4jzP-https://docs.google.com/document/d/15wxjmL-
Preview presentations before using with your classes
as many slides have animations and links you will
need to use.
I do Science Starters at the beginning of each class
period. A collection of starters for Forensics is
available on my lessons plans page at
.https://sciencespot.net/Pages/classforsci.html
Fill in the Part A as
you watch the first
segment video.
We will stop several times to review the evidence.
What was the crime?
Type of Crime:
Date:
Location:
Victim(s):
Suspect(s):
Homicide?
October 1994
Prince Edward Island, Canada
Shirley Duguay
Doug Beamish (Husband)
10/7 – Car reported
10/3 – Date of disappearance
Let’s investigate more … fill in your chart as we explore
the evidence.
Shirley
Matched to Shirley
Medium impact spatter
Matched to Shirley
Matched to Snowball
Matched to Snowball
Matched to Shirley
Would fit Doug
Same as Doug
Similar to Doug’s pattern
Shovel
Shows Doug wearing the jacket
Doug had history of violence
Separated – not divorced
DNA matched to Snowball
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Explore the forensic investigation of a homicide case involving Doug Beamish, his wife Shirley Duguay, and a cat named Snowball. Evidence such as blood analysis, hair samples, and DNA matching led to Beamish being charged, convicted, and sentenced to prison for 18 years. Dive into the details of this intriguing case to learn how forensic science played a crucial role in securing justice.
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Presentation Transcript
CSI Unit Training Materials Case Study: Case Study: Purrfect Match Purrfect Match Complete the slide as we watch the video. T. Tomm Updated 2023 https://sciencespot.net https://www.youtube.com/watch?v=_8x-JL3MalU T. Tomm 2007 Updated 2023 https://sciencespot.net/
FORENSIC FILES: PURR-FECT MATCH Fill in the Part A as you watch the first segment video. We will stop several times to review the evidence.
FORENSIC FILES: PURR-FECT MATCH KEY What was the crime? Homicide? Type of Crime: 10/7 Car reported 10/3 Date of disappearance October 1994 Date: Prince Edward Island, Canada Location: Shirley Duguay Victim(s): Doug Beamish (Husband) Suspect(s):
Lets investigate more fill in your chart as we explore the evidence.
Evidence What did it tell the investigators about the crime? Shirley 1 Owner - 2 Blood in car/on pillow - 3 Blood - 4 Unidentified blood- 1 First hairs 2 Second set- 1 Blood - 2 Size- 1 Size - 2 Wear pattern- Matched to Shirley Car Medium impact spatter Matched to Snowball Matched to Shirley Matched to Snowball Matched to Shirley Would fit Doug Same as Doug Similar to Doug s pattern Shovel Shows Doug wearing the jacket Doug had history of violence Separated not divorced DNA matched to Snowball Hairs Jacket Shoes Body Picture 1 Wounds from Shows - 1 History 2 Marital status - Motive Other Hair root
Part C: Answer the questions. What did you pick? Why? Beamish was charged with murder; convicted and sentenced to 18 years in prison
