Serial Killers
Forensic Fields
Blood Evidence
Time of Death
Footwear and Tire Impressions
100

Who was known as the "Milwaukee Cannibal"?

Jeffrey Dahmer

100

Which branch of science studies insects on a body?

Forensic Entomology

100

What does DNA stand for?

Deoxyribonucleic Acid

100

What is the medical term for the cooling of the body after death?

Algor mortis

100

What part of a shoe creates the impression?

The tread

200

This serial killer was known as the "Green River Killer."

Gary Ridgway

200

What type of scientist studies drugs within the body after an autopsy?

Forensic toxicologist

200

What blood type is known as the universal donor?

O negative

200

Which postmortem change usually begins within 2–6 hours after death?

Rigor mortis

200

What type of impression is made in soft material like mud or snow?

A three-dimensional impression

300

This serial killer was known as the "Killer Clown."

John Wayne Gacy

300

What is the study of bones called?

Forensic anthropology

300

What does the pointed end (tail) of a bloodstain indicate?

The direction the blood was traveling.

300

What insect is often one of the first to arrive at a decomposing body?

Blowfly

300

What material is commonly used to cast a shoe print found in mud?

Dental stone (or casting stone).

400

Who was the serial killer known as the "BTK Killer" (Bind, Torture, Kill)?

Dennis Rader

400

Which branch compares teeth and bite marks?

Forensic odontology

400

Cast-off bloodstains are commonly created by what action?

Blood being flung from a moving object, such as a swinging weapon.

400

If livor mortis has become "fixed," what does that suggest?

The body has been dead for several hours and was likely not moved after lividity became fixed.

400

Why are accidental cuts and wear on a shoe valuable evidence?

They create individual characteristics that can link a specific shoe to an impression.

500

This unidentified serial killer terrorized Northern California in the late 1960s and sent coded messages to newspapers.

The Zodiac Killer

500

What branch matches shoe impressions?

Forensic podiatry

500

What chemical glows blue when reacting with blood?

Luminol

500

Besides algor, rigor, and livor mortis, what other evidence helps estimate time of death? (give at least one)

Insect activity, stomach contents, decomposition, witness statements, and digital evidence (e.g., phone or smartwatch activity)

500

Investigators find footprints that become farther apart as they approach a door. What could this indicate?

The person began running