Lindsay Clancy
Congresswoman Nancy Mace has called for the death penalty for Massachusetts mother Lindsay Clancy accused of killing her three children Facebook/Lindsay Marie Clancy

US Congresswoman Nancy Mace has called for Lindsay Clancy to receive the death penalty and be publicly executed after a Massachusetts jury failed to reach a unanimous verdict in the case involving the deaths of her three children.

Speaking to TMZ, the South Carolina Republican said Clancy 'should be dead too', adding: 'She should get the death penalty. It should be public; it should be a public execution.'

Clancy, 36, is accused of killing her three children — Cora, 5, Dawson, 3, and Callan, 8 months — at the family's home in Duxbury, Massachusetts, in January 2023.

She has pleaded not guilty by reason of lack of criminal responsibility, with her defence arguing that she was suffering from severe postpartum psychosis at the time.

The trial ended in a mistrial on 4 September after the jury failed to reach a unanimous verdict. Eleven jurors reportedly favoured finding Clancy not criminally responsible, while one juror disagreed.

Judge William Sullivan subsequently declared a mistrial. The mistrial did not result in a conviction or acquittal. Prosecutors have not announced whether they will seek a retrial. Clancy's lawyer, Kevin Reddington, has instead asked Judge Sullivan to find her not guilty, arguing that the prosecution's evidence was legally insufficient. A hearing on the motion is scheduled for 29 September.

Nancy Mace's Call for Execution

Mace told TMZ that she did not believe Clancy's physical condition or mental-health defence should affect the outcome.

'He wants sympathy for his client being in a wheelchair,' Mace said, referring to Reddington. 'Her children are dead. She should be dead too.' Mace subsequently said the death penalty should be carried out publicly.

'It could be by firearm, it could be the electric chair; I don't really care,' she said, describing a public execution as a warning to other women not to kill their children.

Mace later repeated her position on X, writing that Clancy 'deserves the death penalty' and calling for the execution to be made public.

Massachusetts does not currently have a death penalty. A conviction for first-degree murder would carry life imprisonment without parole, while other possible convictions carry different penalties.

Postpartum Psychosis Defence

Clancy's defence has argued that she was suffering from postpartum psychosis and therefore lacked criminal responsibility for the killings.

The legal question was not simply whether Clancy had a mental illness. The jury was required to consider whether her mental condition met the legal standard for a finding of lack of criminal responsibility.

Mace has repeatedly criticised that defence. In a Facebook post following a 2 September appearance on Piers Morgan Uncensored, she argued that postpartum mental illness should not become a 'get-out-of-jail-free card' for killing children. She also wrote that 'Mental illness is an explanation but it is not an excuse'.

In another post, Mace said Clancy did not deserve to live. She also used the phrase 'liberal white women' when criticising supporters of Clancy and separately suggested that the public response would have been different if Clancy were Black.

What Happens Next

Clancy remains in custody at Tewksbury Hospital while the legal proceedings continue. Reddington has also appealed publicly to President Donald Trump for a pardon. Trump said the matter was a state case, meaning the president does not have ordinary federal pardon authority.

For now, Clancy remains accused, not convicted. The 4 September mistrial left the criminal case unresolved, and the next significant step is expected to be the 29 September hearing on the defence's request for a not-guilty ruling.

Plymouth County prosecutors have not yet announced whether they intend to pursue a retrial.

Meanwhile, Mace argued that only that single juror showed the moral courage to hold Clancy accountable.

Police and court records show the trial ended without a verdict, and no new charges have been filed since the mistrial. Investigators and prosecutors are still working through what happens next.