US

The former husband of Lindsay Clancy, the Massachusetts mother accused of murdering her three young children, took the stand Monday as the prosecution’s first witness in her triple-murder trial.

His testimony – expected to continue when court resumes on Wednesday – followed opening statements from both parties, who previewed some of the evidence jurors could see in the coming weeks.

Lindsay Clancy does not deny she killed their children, but she has pleaded not guilty to three counts of murder, arguing she should not be held criminally responsible for fatally strangling them. Her attorney has said she was suffering from postpartum psychosis and extreme mental illness when she killed them on January 24, 2023.

The trial is expected to focus heavily on testimony from dueling psychiatric and medical experts.