1. Read the Danielle Van Dam Murder Case article on the bottom of page 123.
2. Watch the following video that outlines the details of the case:
The Heartbreaking Story of Danielle Van Dam
https://youtu.be/ozUHNh67dhY
3. Watch the following videos related to the entomology evidence in the case:
The Murder of Danielle Van Dam
https://youtu.be/wwDz8TIQ9Rk
Forensic Entomology (start video at the 5:35 time mark)
Based on your review of the videos, the textbook and Internet research, why do you think the conclusions (opinions) of the four Forensic Entomologists who testified in the case were different? What are some variables that must be taken into consideration by a Forensic Entomologist when estimating time of death?
Sample Answer
In the Danielle Van Dam case, forensic entomology became one of the most contentious aspects of the trial because the experts' estimated Post-Mortem Intervals (PMI) conflicted with the timeline of David Westerfield’s movements.In the Danielle Van Dam case, forensic entomology became one of the most contentious aspects of the trial because the experts' estimated Post-Mortem Intervals (PMI) conflicted with the timeline of David Westerfield’s movements.
Why the Conclusions Differed
The four forensic entomologists (Faulkner, Haskell, Goff, and Hall) reached different conclusions primarily due to differences in data interpretation, methodology, and the specific variables they prioritized. Key reasons for the discrepancies included:
Choice of Temperature Data: Forensic entomologists rely on temperature to calculate the rate of insect development. Some experts used weather station data from the nearby desert, while others used data from San Diego or the specific recovery site. Discrepancies in these records led to significantly different estimates of how fast the larvae grew.