Lindsay Clancy Case: Fixation and Alleged Poison Plot Detailed as Defense Cites Psychosis

An Illinois woman charged in the strangling death of her 2-year-old son was in the midst of a “psychotic episode” when the child died, according to her high-profile defense attorney, while prosecutors say she had also been planning to poison her husband.

The dueling narratives have emerged as attorneys for Corie A. Walsh claim jail authorities failed to give her prescribed psychiatric medication, despite hospital doctors recommending continuous psychiatric care after she was discharged, the defense says.

Those starkly different accounts of Walsh’s condition are expected to put a key legal issue at the center of the case: whether the evidence of serious mental illness meets Illinois’ threshold for an insanity defense.

Andrea Lyon, a well-known defense attorney who was previously part of Casey Anthony’s legal team, told News Media in a statement this week that Walsh’s alleged actions were the result of mental illness.

“This is a tragedy for the Walsh family, all of whom are mourning the loss of this child,” Lyon said. “It is also a tragedy in that Corie herself was experiencing a psychotic episode at the time this happened.”

While Lyon described Walsh as experiencing a psychotic episode, legal experts say a psychiatric diagnosis alone does not determine whether someone meets Illinois’ legal standard for insanity.

“The definition of insanity is, as a result of a mental defect or disability, that you’re unable to appreciate the criminality of your conduct,” Richard S. Kling, a clinical professor at Chicago-Kent College of Law and former Cook County public defender who has handled insanity cases, told News Media.

Kling said psychiatrists first determine whether someone meets the criteria for a recognized mental illness before courts consider whether that illness prevented the person from appreciating the criminality of their conduct. He also said defendants who pursue an insanity defense must present evidence they were legally insane at the time of the alleged offense. Illinois also recognizes a separate verdict of guilty but mentally ill, distinct from a finding of not guilty by reason of insanity.

But behind the scenes, a battle over Walsh’s mental health care is unfolding.

Following her arrest, Walsh was treated at Silver Cross Hospital for self-inflicted wounds to her wrists and thighs. According to her defense team, hospital doctors recommended she receive 24/7 psychiatric care upon her discharge.

However, Walsh’s attorneys said she is not receiving her prescribed medication inside the Will County Adult Detention Facility.

The Will County Sheriff’s Office, which oversees the jail, did not respond to News Media’s request for comment regarding Walsh’s medical treatment.

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The defense’s account differs sharply from prosecutors’ allegations.

Along with three counts of first-degree murder, prosecutors also allege Walsh was planning to poison her husband Michael Walsh, before her son’s death.

Further details regarding the alleged poisoning plot – including how far along the plan was or what substance was involved – were not immediately disclosed in court. Michael Walsh was traveling out of state when the couple’s son was killed and flew home that evening. He has not responded to News Media’s request for comment.

Speaking generally and not about Corie Walsh’s case specifically, Kling said evidence that a defendant planned or attempted to conceal a crime can become relevant in an insanity case because prosecutors may argue it shows the defendant understood the criminality of the conduct.

Walsh allegedly told police she killed the toddler because she believed he was the “devil,” a petition seeking to deny her pretrial release states.

Witnesses also told investigators Walsh had recently grown “very invested” in the trial of Lindsay Clancy, a Massachusetts mother who was charged with murdering her three children during an alleged bout of postpartum psychosis.

Walsh allegedly texted friends about the Clancy case as late as 12:30 p.m. on the day of her son’s killing.

“It is our hope that through a thorough presentation and investigation of the facts, that all of us will come to see this heartbreak for what it is,” Lyon said.

The competing claims have prompted a deeper investigative look into Walsh’s background.

Kling said a documented history of mental illness, psychiatric treatment and medication can become critical evidence in an insanity case because psychiatrists often examine a person’s mental state before and after an alleged crime to help evaluate their condition at the time of the offense.

News Media has reached out to multiple immediate family members, in-laws and former neighbors to determine whether there were prior warning signs, isolation or documented mental health struggles leading up to the holiday weekend.

Additionally, News Media has filed public records requests with local police departments seeking years of 911 dispatch logs and wellness checks connected to Walsh’s current and former residences.

Because of the victim’s age, the three first-degree murder counts carry a potential sentencing range of 60 to 100 years in prison, to be served at 100% upon conviction.