A State Police investigator is detailing Lindsay Clancy's Google searches before the killings of her three children. 

According to police, Clancy googled psychosis symptoms, hallucinations and postpartum depression in the days before she killed her three children.  Her phone also showed searches related to suicide, bipolar disorder and psychiatric medications. 

Her defense says she suffered postpartum psychosis and heard a voice ordering her to kill the children and herself. 

Prosecutors maintain Clancy acted intentionally and testimony resumes on Monday.