Blood #2 found at scene belonged to the victim
2. Thus blood #1 found at scene belongs to the suspect
3. After analyzing the suspects, Kyle's blood matched the blood found at the scene and due to all the other evidence (from the other sections of the lab) we were able to conclude that that perpetrator was Kyle.
Hair Evidence -- The only hair was that of the victim, no other matches were made or are relevant.
Processessing of Evidence
Fingerprints -- There were none taken at the scene, but dusting and tape lifting would have been used if there had been evidence; then compared for ridge patters of suspects or database.
Hair -- if root was attached, DNA using PCR technology; if not, microscopic examination and 15-20 representative samples to compare.
Blood -- RFLP, DNA Analysis, Precipitin test, comparative analysis
Footprints -- precise measurements and castings, comparison to suspects or national database for information
Drugs -- spectrographic or chemical analysis, depending on type and substance (powder, liquid, solid, etc.) (Schiro, 2010).
Suspect List and Exclusion, Inclusion -- The officers found only four boys at the scene, identified previously as Stan Marsh, Kyle Broflovski, Eric Cartman, and Kenny McCormick. The boys ran from the scene, but warrants were secured to take hair, blood, and shoe prints from all four. The results were thus:
Suspect
Hair
Shoe
Drugs
Blood
Broflovski, K.
Inconclusive
Closest Match, .5 cm off.
66% match
100% match
Cartman, E.
Inconclusive
No Match
33% match
No Match
Marsh, S.
Inconclusive
No Match
50% match
No Match
McCormick, K.
Inconclusive
No Match
50% match
No Match
Crime Scene Recreation -- It would be quite easy to say, based on the physical evidence, that Kyle was the murderer in this case. However, we must not...
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