The pregnant Maryland teacher shot dead and left in a shallow grave had tried to talk to another woman with whom her boyfriend was also engaged to marry, police said. Investigators lured the boyfriend, Tyler Tessier, into speaking at a news conference while Wallen was still missing with the hope that his demeanor and words would help them solve the mystery. Tessier, 32, was charged with the murder of Lauren Wallen, 31. Nancy Grace digs into this homicide with forensics expert Sheryl McCollum,  psychoanalyst Dr. Bethany Marshall, and CrimeOnline reporter Leigh Egan.

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<p>The pregnant Maryland teacher shot dead and left in a shallow grave had tried to talk to another woman with whom her boyfriend was also engaged to marry, police said. Investigators lured the boyfriend, Tyler Tessier, into speaking at a news conference while Wallen was still missing with the hope that his demeanor and words would help them solve the mystery. Tessier, 32, was charged with the murder of Lauren Wallen, 31. Nancy Grace digs into this homicide with forensics expert Sheryl McCollum,  psychoanalyst Dr. Bethany Marshall, and CrimeOnline reporter Leigh Egan.</p>
      <p> </p> Learn more about your ad-choices at <a href="https://www.iheartpodcastnetwork.com">https://www.iheartpodcastnetwork.com</a>

Nancy Grace dives deep into the day’s most shocking crimes and asks the tough questions in her new daily podcast – Crime Stories with Nancy Grace. Nancy Grace had a perfect conviction record during her decade as a prosecutor and used her TV show to find missing people, fugitives on the run and unseen clues. Now, she will use the power of her huge social media following and the immediacy of the internet to deliver daily bombshells!

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Crime Stories with Nancy Grace

Nancy Grace dives deep into the day’s most shocking crimes and asks the tough questions in her new daily podcast – Crime Stories with Nancy Grace. Nancy Grace had a perfect conviction record during her decade as a prosecutor and used her TV show to find missing people, fugitives on the run and unseen clues. Now, she will use the power of her huge social media following and the immediacy of the internet to deliver daily bombshells!

Theme Music: Audio Network

The pregnant Maryland teacher shot dead and left in a shallow grave had tried to talk to another woman with whom her boyfriend was also engaged to marry, police said. Investigators lured the boyfriend, Tyler Tessier, into speaking at a news conference while Wallen was still missing with the hope that his demeanor and words would help them solve the mystery. Tessier, 32, was charged with the murder of Lauren Wallen, 31. Nancy Grace digs into this homicide with forensics expert Sheryl McCollum,  psychoanalyst Dr. Bethany Marshall, and CrimeOnline reporter Leigh Egan.