U.S. Rep. Clay Fuller says he plans to introduce legislation that would limit the use of the insanity defense in federal criminal cases.
Fuller, a Republican representing Georgia, announced his plans in a post on X while commenting on the case of Lindsay Clancy, a Massachusetts woman accused of killing her three children in 2023.
“You shouldn’t get to murder three kids in cold blood and plead insanity to escape accountability,” Fuller wrote. “I’m introducing federal legislation to limit the insanity defense in federal crimes. Mental illness is not a get out jail free card. Lindsay Clancy is a monster.”
Clancy’s murder trial ended in a mistrial Friday after jurors were unable to reach a unanimous verdict.
The jury reportedly voted 11-1 in favor of finding Clancy not criminally responsible, with one juror declining to agree with the other members of the panel.
Clancy is accused of killing her three children at the family’s Massachusetts home in January 2023. Her defense has centered on her mental state at the time of the children’s deaths.
Following the mistrial, prosecutors have not yet announced whether they intend to retry the case. A hearing is scheduled for September 29.
Fuller pointed to the case while arguing that federal law should place additional limits on when defendants can use an insanity defense.
“I’m introducing federal legislation to limit the insanity defense in federal crimes,” Fuller said.
Fuller has not yet released details of the proposed legislation, including what changes it would make to the existing federal insanity defense or when the bill will be formally introduced.
The Clancy case is being prosecuted in Massachusetts state court, meaning Fuller’s proposed federal legislation would not directly apply to her case. His proposal would instead affect defendants charged with federal crimes.

