In the trial of Lindsay Clancy, no one is asking who killed her three children. Both the prosecution and defense agree she did it. The entire legal battle is over why and exactly who is responsible. The defense argues a lack of criminal responsibility, the legal standard for the insanity defense. They claim a complete mental collapse driven by postpartum psychosis and psychiatric drugs left her unable to distinguish right from wrong. But the prosecution rejects the insanity defense arguing cold calculated premeditation. They point out she intentionally mapped out her husband's errands to buy time and deliberately hid her dark thoughts from doctors so she wouldn't lose her children. And while she fights murder charges, a second legal front has opened. Both Clancy and her ex-husband are suing her psychiatric providers. The lawsuits allege gross medical negligence claiming the health care system severely over medicated her which ultimately caused the wrongful deaths of their children. So this courtroom isn't just deciding a murder charge. It's forcing the justice system to ask, where does and catastrophic systemic medical failure begin?