Lisa Montgomery, 52, was executed by lethal injection at the Federal Correctional Complex in Terre Haute, Indiana, and pronounced dead at 1:31 a.m. Wednesday.
Montgomery was the first woman to be executed by the federal government since 1953 and was the only woman on death row.
The Supreme Court denied a last-ditch effort late Tuesday by her defense attorneys who argued that she should have been given a competency hearing to prove her severe mental illness, which would have made her ineligible for the death penalty.
She was the 11th federal death row inmate to be executed by the Trump administration after a 17-year hiatus in federal executions.
"The government stopped at nothing in its zeal to kill this damaged and delusional woman," her attorney, Kelley Henry, said in a statement. "Lisa Montgomery's execution was far from justice."
