Kirk Heilbrun told jurors that he didn't believe Clancy's claim that she hallucinated a voice telling her to kill her children, who ranged from 8 months to 5 years old. He said he instead believed she took their lives so they wouldn't "suffer" after she killed herself.

Kirk Heilbrun, who examined Clancy over three days this year, said he struggled to reach a diagnosis of bipolar 2 disorder "because of all the diagnoses in the records and all the symptoms that she experienced."