NEW ORLEANS — The state Supreme Court on Tuesday refused to take up an appeal from a woman convicted of second-degree murder in the poisoning of her domestic partner.

The 1st Circuit Court of Appeal last September had ruled the evidence against Meshell Hale was sufficient. She had been convicted of killing Damian Paul Skipper in 2015. After Hale's estranged husband Arthur Noflin died a year later, the coroner exhumed Skipper's body and determined he had been poisoned with barium.

Prosecutors say Hale — or someone with her name, contact information, credit card, and computer — bought barium acetate three times. Barium was also found in Noflin's system. His death caused prosecutors to look into whether Hale had killed the men for insurance money.

She is serving a life term.