The body of Margaret "Maggie" Sniegowski is found by a farmer, dumped along a central Indiana highway.  Police say the teen had been dead for several days. At the time, however, no one knew who the girl was and it would be 20 years before the 17-year-old was identified,  thanks to DNA technology. 

Boone County Coroner Justin Sparks said an autopsy ruled her cause of death as undetermined.  Sheriff Mike Nielsen said there were indications Sniegowski may have been strangled. The focus now is to find who killed her.  

Joining Nancy Grace Today:

• Sheriff Mike Nielsen - Boone County Sheriff’s Office (Boone County, IN)
• David Mittleman - DNA Expert, CEO: Othram Inc, www.othram.com 
  Jim Elliott - Of Counsel, Butler Snow LLP, www.butlersnow.com, Instagram: JimElliott1957
• Dr. Jorey Krawczyn [KRAW-ZIN] - Psychologist (Panama City Beach, FL), Adjunct Faculty with Saint Leo University; Research Consultant with Blue Wall Institute, Author: "Operation S.O.S. - Practical Recommendations to Help “Stop Officer Suicide”, bw-institute.com
• Dr. Tim Gallagher - Medical Examiner State of Florida PathcareMed.com, Lecturer: University of Florida Medical School Forensic Medicine, Founder/Host: International Forensic Medicine Death Investigation Conference 
• Richard Essex - Investigative Reporter, WISH-TV, Twitter: @RichardEssexIII, Facebook: RichardEssexTV