Kouri Richins' defense alleges the Summit County Sheriff’s Office illegally obtain evidence while investigating the death of Eric Richins. Defense attorneys Kathy Nester and Wendy Lewis say detectives violated Richins' constitutional rights and are arguing that evidence be ruled inadmissible during the her murder. At the center of the motion is the "Walk the Dog" letter, and data from her phone and Apple accounts.

Defense attorneys argue investigators took Kouri’s phone without a proper warrant and did not inform her right to remain silent, her right to ask for a lawyer and her right to refuse questioning.

This case begins when on more than one occasion, Eric Richins gets violently ill after having dinner with his wife, Kouri.

Then the pair, who own a successful real estate business, is celebrating a big sale when Kouri Richins fixes her husband a drink. She then goes to take care of the children. Hours later when she goes to bed Eric Richins is dead.

Investigators believe his wife killed him, putting an overdose of fentanyl in his drink. Police also discover that Kouri Richins tried to change the beneficiary to her husband's life insurance.

Joining Nancy Grace Today:

• Jeffrey Wolf - Criminal Defense Attorney; Twitter: @JeffWolf5280 and @WolfLawLLC
• Dr. Angela Arnold - Psychiatrist, Atlanta GA.- Expert in the Treatment of Pregnant/Postpartum Women; Former Assistant Professor of Psychiatry, Obstetrics and Gynecology: Emory University; Former Medical Director of The Psychiatric Ob-Gyn Clinic at Grady Memorial Hospital
• Bobby Chacon- Former Special Agent FBI, Screenwriter for “Criminal Minds;” Instagram/Twitter: @BobbyChaconFBI
• Dr. Paul Christo - Opioid Expert, Associate Professor for The John Hopkins School of Medicine, Division of Pain Medicine; Author and Host of "Aches & Gains: A Comprehensive Guide To Overcoming Your Pain"
• Dr. Kendall Crowns- Chief Medical Examiner Tarrant County (Ft Worth), Lecturer: University of Texas Austin and Texas Christian University Medical School
• Jen Smith- Chief Reporter for DailyMail.com, Twitter: @jen_e_smith

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