An Alabama woman serving life without parole in her granddaughter's running death is on life support after a possible heart attack.

Dani Bone is a lawyer who represented Joyce Hardin Garrard during her trial last year. Bone said Wednesday that the 50-year-old woman was stricken at Tutwiler prison on Sunday.

Garrard has a history of cardiac problems. Bone says the chances of her recovering are poor.

Prison officials aren't releasing details on Garrard's condition. But spokesman Bob Horton says she was treated at the prison and then taken by helicopter ambulance to Jackson Hospital in Montgomery.

Garrard was convicted of killing 9-year-old Savannah Hardin by making her run as punishment for a lie about candy four years ago.

Garrard is challenging the conviction.