Lindsay Clancy had a warped — but altruistic — reason for killing daughter Cora and sons Dawson and Callan, forensic psychiatrist Dr. Phillip Resnick said Friday.

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Resnick testified that she had a distorted belief that if she killed herself, her children’s lives would be so awful without her that she should kill them too.

“In her mind, she believed she would be doing her children a favor by having them go to heaven with her rather than remain on Earth without her doing the mothering.

“Her mind was distorted like that.”

Here’s the latest on Lindsay Clancy’s trial for allegedly murdering her three children:

Clancy “believed her children would be miserable. And she couldn’t imagine them continuing to exist and have a decent life without her being there as a mother,” Resnick said.

“So in that sense, she did what she believed was morally right, even though she understood that ordinarily killing a child is against the law, she believed that she was doing what was right for her children with her distorted psychotic symptoms and her children’s need for her.”