Plymouth, Massachusetts —

A psychologist testified Lindsay Clancy killed her children in January 2023 because she planned to attempt suicide and “wanted her children ‘with’ her so they wouldn’t be separated (and) wouldn’t have to suffer after she was gone.”

Kirk Heilbrun examined Clancy over three days in April and performed psychiatric tests as he tried to understand her motivation for the killings.

He said there was some evidence she experienced an acute psychosis, primarily her own claim that she heard a male voice telling her to kill herself and her children. But she did not report hearing that voice at any point before the killings or at any point afterward.

“To put it mildly, that would be a very, very unusual pattern or manifestation of how this kind of thing comes about,” he said.