crime scene

35
Simulated Crime Scene Group 6

Upload: sjmorley

Post on 15-Dec-2014

556 views

Category:

Documents


2 download

DESCRIPTION

BIO 305 Crime Scene Analysis Final PPT

TRANSCRIPT

Page 1: Crime scene

Simulated Crime SceneGroup 6

Page 2: Crime scene

Location: A Warehouse

The Victim: Jill Johnson

Page 3: Crime scene

The Crime SceneMs. Johnson was found comatose, with a high fever. It is possible to deduce from the evidence that bioterrorism activities were being conducted in the warehouse where she was found. She was hospitalized and a a toxicology analysis was requested. The results: the fungus Aspergillus Fumigatus was present.

Page 4: Crime scene

The Crime Scene

Page 5: Crime scene

The Crime Scene

Page 6: Crime scene

The Search

Once the victim received medical attention and the crime scene was secured, photographed, and sketched a line method search for evidence was conducted.

Considering the overall layout of the crime scene and the rectangular configuration of the warehouse, the line method seemed most practical.

Page 7: Crime scene

The EvidenceGiardia Lamblia: Causes symptoms in its victim much too vile to describe. However, is not normally fatal.

Page 8: Crime scene

The Evidence

Bacillus Cereus: causes digestive illness when ingested

Page 9: Crime scene

The EvidenceToxoplasma gondii trophozoites: causes Taxoplasmosis-fatal in those with immune deficiencies.

Haemophilus influenza: causes a variety of illnesses including bacterial meningitis and pneumonia.

Borrelia burgdorferi: causes Lyme disease

Plasmodium malariae: malaria

Streptococcus faecalis: causes bladder, prostate &epididymal infections.

Escherichia Coli: (E. Coli): causes food poisoning

Enterococcus Faecalis: Causes life threatening infection

Page 10: Crime scene

The Evidence

African Sleeping Sickness: a.k.a. African Trypanosomiasis- caused by a parasite, Trypanosoma brucei gambeinse which is transmitted by a bite from a tsetse fly. The disease is rarely found outside of Africa and is fatal if left untreated.

Staphylococcus Epidermis: primarily effects patients with a compromised immune system. Symptoms vary widely depending on area infected and typically include fever.

Page 11: Crime scene

The Evidence

Test tube containing endospores was found at the crime scene and sent to the lab for analysis: Collected by Curtis Holiday. The results confirmed Anthrax.

Page 12: Crime scene

The EvidenceA spoon was found lying next to the victim. It was swabbed by Curtis Holiday for trace evidence. The swab was sent to the lab for toxicology analysis. The spoon was then processed for latent prints on site using super glue fuming.

This process involves carefully suspending the spoon from the lid of a large jar. At the bottom of the jar, Superglue is added to absorbent cotton treated with sodium hydroxide. The subsequent fumes and the spoon were contained within the chamber long enough for the fumes to adhere to the latent print on the evidence.

.

Page 13: Crime scene

The EvidenceThe prints on the medicine spoon match those of

Hailey Wescott.

1

3

4

2

1. Ridge End2. Bifurcation3. Delta4. Ridge Crossing

Page 14: Crime scene

The EvidenceThe Lab results confirmed the substance on the spoon was Voriconazole: a medication used to treat severe fungal infections. Empirically proven to reduce fever and preserve renal function

Page 15: Crime scene

The Evidence

A petri dish containing an unknown substance was found at the scene. It was sealed and sent to the lab by Curtis Holiday.

The results: The fungus Aspergillus: causes aspergillosis, an infection that causes a variety of symptoms including extremely high fever leading to coma, typically infecting those with compromised immune systems. Considered fatal if left untreated.

Page 16: Crime scene

The EvidenceAn incubator set at 37 degrees Celsius contained a petri dish growing Rhizopus. Known to cause zygomycosis, considered a fatal infection.

Page 17: Crime scene

The Evidence

Also found at the scene: A second petri dish which contained the fungus Rhizopus.

Page 18: Crime scene

The EvidenceA leaf was found at the scene, and identified using a dichotomous key to be Bur Oak with the following track: 1b - 3b – 5a – 6a – 7a – Bur Oak.

Page 19: Crime scene

The Evidence

A Mum Spore was also found at the scene. This was identified from the Mixed Pollen Key Card.

Page 20: Crime scene

The Evidence

Mum Bur Oak

Van Selama X X

Hailey Wescott X

Carl Smith X

The following suspects have plant types in their Modus Operandi thatmatch the plant types found at the scene.

Page 21: Crime scene

The EvidenceAn empty snack size bag of M & M’s was found at the scene containing a fingerprint.

The prints were not discernable with the technology at our disposal

Page 22: Crime scene

The Evidence

Two partially consumed snack size Twix brand candy bars were also found at the scene.

They were packaged by Curtis Holiday and sent to the lab for DNA analysis.

The DNA results for both candy bars matched two suspects- Brianna Evian and Hailey Wescott.

Page 23: Crime scene

The Evidence

Two Twix brand candy bars

Page 24: Crime scene

DNA Evidence

Page 25: Crime scene

DNA Evidence

CS 8 7 6 5 *4 3 *2 1

Probe 1

12,15

11,13

13,14

12,14

12,14

12,15

15 12,15

15

Probe 2

19,23

17,21

22,22

18,22

18,22

19,23

18,22

19,23

22,18

Probe 3

25,29

26,28

25,29

27,27

27,30

25,29

27 25,29

26,28

Probe 4

13,13

12 13,17

12,15

14 13 12,16

13 12,15

Probability: 1/ 1,050,000,000

Page 26: Crime scene

The EvidenceTwo snack size Snicker’s brand empty candy wrappers were found at the scene.

A CD was also found. It was processed for prints using the powder method by Curtis Holiday.

Page 27: Crime scene

The EvidenceTwo prints were found on the CD. The identification is inconclusive.

Page 28: Crime scene

The Evidence

One of the empty Snicker’s brand wrappers contained a fingerprint

Page 29: Crime scene

The Evidence

Point-by-Point Analysis of print left in Snicker’s wrapper. This print matched those for suspect #2,Brianna Evian.

3

1. Bifurcation2. Island3. Ridge End4. Bifurcation5. Ridge End

Page 30: Crime scene

The EvidenceTwo thumb prints found on the exterior incubator door. These prints, one of which is an obvious double whirl, do not match any of of the usable prints provided with the Modus Operandi.

Page 31: Crime scene

The EvidenceFingerprints left on incubator interior door

Page 32: Crime scene

The EvidencePoint-by-Point analysis of fingerprints left on incubator

These prints match suspect #2, Brianna Evian.

1. Ridge End2. Delta3. Bifurcation4. Island5. Bifurcation

1. Bifurcation2. Island3. Bifurcation4. Ridge End5. Delta

1. Ridge End2. Bifurcation

Page 33: Crime scene

SummaryBoth the Bur Oak and the Mum spores found at the scene matched the plant types for suspect #1, Van Selama, possibly placing him at the scene.

The DNA on the Twix brand candy bar matched both Brianna Evian and Hailey Wescott. Their personal profiles containing matching blood types, physical appearance, and birthdates further confirmed that they are twins. This alone could place either one or both at the scene of the crime. However…

Brianna Evian’s fingerprints were found on the incubator and on the Snicker’s candy wrapper, placing her at the warehouse

Page 34: Crime scene

Summary

The latent prints found on the medicine spoon matched those of Hailey Wescott, placing her at the scene of the crime as well.

A petri dish was found growing Aspergillus and the victim’s lab results showed she was suffering from an infection from the same fungus.

The medicine spoon contained traces of Voriconazole, used to treat severe fungal infections. We can safely assume that the victim may have been receiving Voriconazole for treatment of the fungal infection.

Page 35: Crime scene

Summary

The total infectious evidence includes:

11 different microbes

2 fungi types

Endospores identified as Anthrax