A psychiatrist who became embroiled in a tense courtroom exchange while testifying in the closely watched Lindsay Clancy murder trial has resigned from his position at a Delaware children’s hospital, The Post has confirmed.

Dr. Avram Mack, who worked at Nemours Children’s Health, resigned Monday — the same day he appeared on the witness stand as a prosecution expert.

“Dr. Avram Mack is no longer employed by Nemours Children’s Health,” the hospital said Friday, declining to provide further details and noting that employment decisions are confidential.

Mack’s departure comes as jurors continue weighing the deeply emotional case against Clancy, who is accused of killing her three young children in January 2023.

Tense Moment in the Courtroom
Mack testified that Clancy was experiencing a “serious psychiatric state” and was suffering around the time of the killings.

However, despite acknowledging the severity of her mental-health struggles, the psychiatrist ultimately concluded that she should still be held criminally responsible.

Clancy’s attorney, Kevin Reddington, aggressively questioned Mack over whether his client had been experiencing psychosis when the children died.

Mack, who did not evaluate Clancy until April 2026, said he found no evidence of “psychotic features” in her medical record.

The testimony grew increasingly heated when Reddington accused the psychiatrist of appearing to smile during questioning.

“What are you smiling for?” Reddington snapped. “This is not funny, sir.”

The exchange quickly became one of the most striking moments of the trial.

A Case That Has Captivated the Courtroom
Clancy, a former labor and delivery nurse, is accused of strangling her 5-year-old daughter Cora, 3-year-old son Dawson and 8-month-old son Callan at the family’s home in Duxbury, Massachusetts.

Her defense has argued that she was suffering from severe postpartum psychiatric illness and should not be held criminally responsible.

Prosecutors, however, have sought to convince jurors that Clancy understood her actions and should be held accountable.

After weeks of testimony from medical experts, family members and investigators, the case has now reached the jury.

As of Friday, jurors had spent two full days deliberating without reaching a verdict.

If convicted of murder, Clancy faces life in prison without parole. The jury could also find her not guilty by reason of insanity, which could result in long-term confinement in a psychiatric facility.

The courtroom now waits for the decision — one that will determine the legal fate of a mother at the center of one of the most closely watched criminal trials in Massachusetts.

Course: NY Post