Assignment:
The body found at the Malden location has been taken to the State Medical Examiner's Office for an autopsy and processing. It appears that the victim has been shot although the cause of death has not yet been determined. Meanwhile, police have found the victim's home burned to the ground and suspect that arson might have occurred.
Please answer the following questions with regard to the victim.
1. The medical examiner performs a visual examination of the body and finds a bullet entrance wound. There appears to be a ring of deposited smoke and lead as a halo around the bullet hole. What would be the approximate distance from which the bullet was shot?
2. The medical examiner swabs an area near the entrance wound. She is trying to determine if there is GSR near the wound. List three elements that might be present in GSR. What are the chemical symbols for these elements? How many protons, neutrons, and electrons do they have?
3. The medical examiner sends the swab to the inorganic analysis laboratory section. What analytical technique might they use to simultaneously determine the three elements found in question 2?
4. The medical examiner has found an unknown metal object in the victim's pocket. She requests that the inorganic analysis laboratory section perform a non-destructive test on the metal to determine the elemental composition. Which analytical technique might the lab choose?
5. The metal in the victim's pocket appears to have been melted and has a pink color. What temperature do you expect the metal has been exposed to? Arson investigators have gone to the scene of the victim's house.
6. A witness at the scene states that she saw smoke coming out of the window and called the fire department. The fire department was there within 5 minutes and the house was completely engulfed. Based on the fact that fire is a chemical reaction, why do you think the fire spread so rapidly?
7. While the victim's house has burnt down, the garage is intact. There are several cans of kerosene there. Based on the flash point, how do you think this would compare to gasoline for use as an accelerant? Which has the higher flashpoint?
8. Based on the composition of gasoline and kerosene, why would gasoline be easier to ignite?
9. What is the difference between the flash point and the ignition temperature?
10. The house had a wooden frame. List two burn patterns that could be used to make a determination as to the origin of the fire.
11. Residue is found that needs to be taken back to the lab for analysis. How should the evidence be transported?
12. Prior to testing, the sample undergoes solid-phase micro extraction. Why is this technique needed prior to testing?
13. What is the purpose of the carrier gas in chromatography?
14. What order do the components of the sample leave the chromatograph?
15. Results of the gas chromatograph indicate that a combination of accelerants may have been used. What technique might assist in determining the accelerants used?
16. Research the assassination of John F. Kennedy https://www.youtube.com/watch?v=W-l23ec4mc
Write a 150 to 200 word summary focusing on one aspect of forensic analysis that was not available when the assassination occurred 50 years ago (use at least two outside sources in your summary).
Consider at least one of the questions below in your response.
What are your thoughts regarding the case? Was there one shooter or multiple shooters? Was there a "magic bullet"? What are your thoughts regarding the many conspiracy theories surrounding the case (see https://www.cnn.com/2013/11/16/us/jfk-assassination-conspiracy-theories-debunked/) for a short video and a list of the most popular conspiracy theories.
Use at least two outside sources in your response and cite using APA format.