Patrick Clancy testifies that he returned home to a quiet house and found his children strangled with exercise bands while Lindsay Clancy lay injured after a fall, and prosecutors say surveillance footage and 911 audio support key elements of the scene.Defense lawyers say Lindsay Clancy suffered postpartum psychosis and heard voices directing her to kill the children, arguing she lacked criminal intent, while prosecutors present medical records, prior hospitalizations and testimony that they say point to a planned killing.Jurors must weigh rare psychiatric illness against evidence including
surveillance footage,
911 audio and contact about medication; if convicted she faces life without parole, and if found not guilty by reason of insanity she would be committed to a psychiatric facility.