Three Oklahoma death row inmates whose execution dates have already been set are among 21 plaintiffs in a lawsuit challenging the state's lethal injection procedures.Charles Frederick Warner, 47, had been set to die on the same day as the botched execution of Clayton Lockett but is now scheduled to be executed on Nov. 13 for the 1997 rape and murder of 11-month-old Adrianna Walker, the daughter of his roommate.Richard Eugene Glossip, 51, is scheduled to be executed on Nov. 20 for the 1997 death of Barry Alan Van Treese, whom Glossip feared would fire him for failing to properly maintain a south Oklahoma City motel, according to prosecutors.John Marion Grant, 53, is scheduled to be executed on Dec. 4 for killing corrections worker Gay Carter, who was stabbed 16 times at the Dick Connor Correctional Center in Hominy on Nov. 13, 1998, after Carter had removed Grant from a job in the prison kitchen.The Oklahoma Pardon and Parole Board has tentatively set hearings to consider commuting the death sentences of Glossip and Grant. Clemency hearings are scheduled on Oct. 24 for Glossip and Nov. 21 for Grant.The board voted 4-1 against clemency for Warner in March.Crime footer

Three Oklahoma death row inmates whose execution dates have already been set are among 21 plaintiffs in a lawsuit challenging the state's lethal injection procedures.

Charles Frederick Warner, 47, had been set to die on the same day as the botched execution of Clayton Lockett but is now scheduled to be executed on Nov. 13 for the 1997 rape and murder of 11-month-old Adrianna Walker, the daughter of his roommate.


Richard Eugene Glossip, 51, is scheduled to be executed on Nov. 20 for the 1997 death of Barry Alan Van Treese, whom Glossip feared would fire him for failing to properly maintain a south Oklahoma City motel, according to prosecutors.

John Marion Grant, 53, is scheduled to be executed on Dec. 4 for killing corrections worker Gay Carter, who was stabbed 16 times at the Dick Connor Correctional Center in Hominy on Nov. 13, 1998, after Carter had removed Grant from a job in the prison kitchen.

The Oklahoma Pardon and Parole Board has tentatively set hearings to consider commuting the death sentences of Glossip and Grant. Clemency hearings are scheduled on Oct. 24 for Glossip and Nov. 21 for Grant.

The board voted 4-1 against clemency for Warner in March.