At the time of the killings, Clancy had recently given birth to her third child. She reported intense feelings of anxiety and depression + sought psychiatric care. On Tues., her husband said she had begun describing intrusive thoughts of harming herself and the children a month before their deaths.

What is postpartum psychosis?As it becomes a key issue in the Lindsay Clancy trial, here's what experts say about the rare psychiatric condition, its symptoms and how it's treated.19thnews.org