Criminal Investigation

Chris WelshTaylor SobottaMariah Zwart

Evan Smith

SKETCHING

Crime Scene Sketching

• Important things to remember– Approx. location of evidence– Overall measurements of room– Finding north– Labeling what is what (exp. Cabinets, table, couch)

Why do a crime scene sketch?

• Helps create a mental picture that a picture might not.

• Gives exact measurements of the scene.• Helps give a permanent record of scene.• Helps assist people.– Interview and interrogation tactics.– present the case in court.

Two types of Sketches

1. Rough Sketch2. Finished Sketch

Rough Sketch

Stai

rwel

l (la

ndin

g)

Stairwell (steps)

Inside room

Overview of Apartment

Living Room

Doo

r

TableCopy Machine

Cabinet Fridge

Coun

ter

Couch

12 Foot, 8 Inches

Blood

6 Foot, 2 Inches

5 Fo

ot, 8

Inch

es

8 fo

ot, 9

Inch

es

Nor

th

CabinetFridge

Copy Machine

Doo

r

Coun

tert

op

Couc

h

Table

Blood

Knife

Styrofoam Cup

Kleenex

Marlboro 100’s

Cigarette

Cocaine

12 Foot, 8 Inches

8 Fo

ot, 4

Inch

es

Nor

th

EVIDENCE CUSTODIAN

Butter knife

• Bloody knife taken from top of cabinets in kitchen

• Important to the case: weapon used for stabbing and covered in blood

• Blood on the butter knife were from Kevin Tuppert

• Fingerprints on the knife were from Kevin Tupper, Shannon Hammons and Heather Schoenwolf

Marlboro 100’s

• Taken from the floor of the kitchen• Important to the case: fingerprints letting us

know who was in the apartment• Kevin Tupper’s fingerprints on the box

Cigarette

• Cigarette found on the kitchen floor• Important to the case: fingerprints letting us

know who was at the apartment• Shannon and Heather’s fingerprints on the

cigarette.

Bloody Tissue

• Bloody tissue found on the couch• Important to the case: find out who’s blood is

on the tissue/couch• Kevin Tupper’s blood on the tissue

Bloody Footprint

• Bloody footprint in doorway• Important to case: find out imprint of boots

and who was in the apartment• Kevin Tupper’s blood found on footprint

Bloody Footprint

• Bloody footprint found on top of stairs leading out of the apartment

• Important to the case: evidence to see who was at the apartment/leaving the apartment

• Brandon Ayers blood on footprint

• Photo #1An overall photo of the outside of the crime

scene showing Brandon Aryes’ pool of blood.

• Photo 7, marker 1Close up view of Brandon Aryes pool of blood

outside.

• Photo 8, marker 2A midrange photo of Brandon Aryes’ (I think)

bloody footprint above the stairs leaving to go outside

• Photo 10, marker 3Midrange view in the doorway before entering

the apartment of Brandon Aryes’ (I think) bloody footprint.

• Photo 4An overall photo of the first look in the apartment.

• Photo 30, marker 20Midrange photo of the couch covered in Kevin Tupper’s blood

Evan Smith

Fingerprint/DNA Analysis

• Brandon Ayers (A, A.a, A.b)• Derek Evans (B, B.a, B,b)• Kevin Tuppert (C, C.a, C.b)• Shannon Hammons (D, D.a, D.b)• Heather Schoenwolf (E, E.a, E.b)• Amy Wedeking (F, F.a, F.b)

Tested Subjects

• Tested for DNA• Matched Subject (A.a, Brandon Ayers)

Item #2 Bloody Footprint

• Tested for DNA • Matched Subject (C.a, Kevin Tuppert)

Item #3 Bloody Footprint

• Tested for Latent Prints• No prints developed• Tested for DNA• Matched Subject (C.a, Kevin Tuppert)

Item #13 Marlboro 100’s

• Tested for Latent Prints• Matched Subjects (D, Shannon Hammons)

and (E, Heather Schoenwolf).

• Tested for DNA • Mixed profile developed but too weak for

comparison

Item #14 Styrofoam Cup

• Tested for DNA• Matched Subject (C.a, Kevin Tuppert)

Item #17 Blood

• Tested for Latent Prints• 2 partial prints matching subjects (D, Shannon

Hammons) and (E, Heather Schoenwolf).

• Tested for DNA • Matched subjects (D.a, Shannon Hammons) and

(E.a, Heather Schoenwolf)

Item #18 Cigarette

• Tested for DNA• Matched Subject (B.a Derek Evans)

Item #19 Blood

• Tested for DNA• Matched Subject (C.a, Kevin Tuppert)

Item #20 Bloody Tissue

• Tested for Latent Prints • Matched Subjects (C, Kevin Tuppert), (D, Shannon

Hammons) and (E, Heather Schoenwolf).

• Tested for DNA• Matched Subject (A.a, Brandon Ayers)

Item #24 Knife