She was convicted on November 17, 1987, for killing her three family members "execution style", however Frances claimed not to be guilty even in her last moments alive.
[2] Prosecutors revealed that Newton had purchased life insurance policies for her husband, her daughter and herself approximately one month before the triple homicide.
She claimed that she forged her husband's signature in order to prevent him from discovering that she set aside money to pay the premiums.
Two hours before her first scheduled execution on December 1, 2004, Texas Governor Rick Perry granted a 120-day reprieve to allow more time to test forensic evidence in the case.
A relative of Newton who was incarcerated shortly after the murders claimed a person he shared a cell with boasted of killing the family.
Her new attorney, David Dow, asked Governor Perry for a 30-day stay to prove that Newton was wrongly linked to the murder weapon.
Newton also appeared as herself in the 2006 television documentary "Women on Death Row", where her guilt is put into question and her innocence was discussed before she was executed.