Updated

Alabama is scheduled to execute a man convicted of killing his estranged wife and father-in-law during a Christmas Eve gathering.

Jeffery Lynn Borden is set to receive a lethal injection Thursday at a south Alabama prison. Borden was convicted of killing his estranged wife, Cheryl Borden, and her father, Roland Harris, in Jefferson County in 1993.

Borden, who was separated from his wife, brought their children to the Christmas gathering after a visit. Prosecutors said he shot Cheryl Borden as she helped move the children's belongings and Harris as he ran for help.

The 56-year-old Borden has challenged the humaneness of Alabama's death penalty procedure.

The U.S. Supreme Court on Wednesday lifted an appellate court injunction that had been blocking Borden's execution.