Defense attorney Kevin Reddington grilled Dr. Jennifer Tufts on Lindsay Clancy's treatment, including decisions to repeatedly prescribe new medications. Lindsay Clancy, who was diagnosed with bipolar disorder after the killings, was not formally diagnosed with postpartum psychosis, according to court documents and clinicians’ testimony. As the weeks went by, Lindsay Clancy’s mental health declined, Patrick Clancy’s medical malpractice suit said. Payne adds that those with postpartum psychosis often respond well to lithium as a form of treatment and management. There’s still so much that is unknown about postpartum psychosis, Vozar says.