Two murders, weeks apart.

Teen cheerleader Amie Hoffman vanished after leaving her part-time job. Two days later, her body is found floating in a retention tank at a local reservoir. Hoffman has been sex assaulted and stabbed repeatedly.

Twelve days later 25-year-old Deirdre O’Brien, 25, bangs on a truck driver’s door at a desolate rest stop pleading for help. She also has been stabbed. Before O’Brien dies, she describes her attacker as tall and slender with bushy hair and some facial hair.

No arrest is immediately made, but the next year, 1983, a break in the case surfaces. James Koedatich calls police, describing his escape from an attacker, who stabbed him. As emergency responders take Koedatich out on a stretcher, a responding officer sees a car that matches descriptions of a vehicle spotted at the mall the night of Hoffman's disappearance and at the rest stop where O’Brien is attacked.

The next day, Koedatich is named a suspect in the cases.

Joining Nancy Grace today:

Laurelle Ivey- Cheerleader Squad Mate and Classmate of Amie Hoffman, Class of 1983
Wendy Patrick - California Prosecutor, Author of “Red Flags," and Host of "Today with Dr. Wendy" on KCBQ in San Diego; Twitter: @WendyPatrickPHD
Dr. Shari Schwartz - Forensic Psychologist (Specializing in Capital Mitigation and Victim Advocacy); Twitter: @TrialDoc; Author: "Criminal Behavior" and "Where Law and Psychology Intersect: Issues in Legal Psychology"
Robert Crispin - Private Investigator, Former Federal Task Force Officer for United States Department of Justice, DEA and Miami Field Division; Former Homicide and Crimes Against Children Investigator; Facebook: Crispin Special Investigations, Inc.
Dr. Monte Miller - Director, Forensic DNA Experts LLC; Specialist in Sexual Assaults and Murder, and Former Forensic Scientist for Texas Dept. of Public Safety State Crime Lab
Dr. Jan Gorniak - Medical Examiner, Clark County Office of the Coroner/Medical Examiner (Las Vegas, NV); Board Certified Forensic Pathologist
Julia Martin- Award-winning Staff Writer for The Bergen Record, Montclair Times, and NorthJersey.com, Gannet/USA Today publications; Twitter:@TheWriteJulia (Montclair, NJ)

See omnystudio.com/listener for privacy information.

Teen Cheerleader Raped, Murdered, First of Several, PERP FAKES OUT COPS