The case has sparked deep public divisions.
Officials say the victims are a 7-year-old girl and a 4-year-old boy.
A man who killed eight of his relatives, including four children, as they gathered for Sunday dinner at a home in Montana had been asked to move out of the residence weeks earlier.
After nearly a month of testimony, jurors in the Lindsay Clancy murder trial are hearing Tuesday from the final witnesses in a case that has largely been about her mental state when she strangled her three young children.
Lindsay Clancy has bipolar disorder and was experiencing anxiety, depression, insomnia and suicidal thoughts in the weeks before she killed her three children, a forensic psychologist testified Monday in her murder trial.
Lindsay Clancy's defense attorney rested their case on Friday after calling one final witness to testify about the effects of postpartum psychosis.