India, Aug. 14 -- Prosecutors assert that text messages and online searches demonstrate that a Massachusetts mother intentionally killed her children, while her defense contends that these same pieces of evidence indicate the contrary.

Lindsay Clancy, 36, faces murder charges in connection with the deaths of her three young children. Although her attorney has acknowledged that the defendant used exercise bands to strangle Cora, 5, Dawson, 3, and Callan, 8 months, within the family's residence, he argues that she was experiencing postpartum psychosis at the time and should not be held criminally accountable for her actions.

On Thursday, the prosecution began to present digital evidence in the case, with Massachusetts State Police Sgt. Ky...