Patrick Clancy returned to the witness stand Tuesday as the murder trial of his ex-wife, Lindsay Clancy, entered its second day. His emotional testimony gave jurors a closer look at the family’s final months before their three children were killed. Prosecutors allege Lindsay Clancy killed the couple’s three children before attempting to take her own life. His testimony outlined months of mental health struggles that the defense is expected to rely on throughout the trial. Lindsay Clancy has pleaded not guilty to all charges.