The Latest on the scheduled execution of a Georgia death row inmate (all times local):

5:20 p.m.

Georgia's highest court has declined to stop the execution scheduled Wednesday for a Georgia inmate convicted for a triple murder.

Thirty-seven-year-old Daniel Anthony Lucas is to receive an injection of the barbiturate pentobarbital at 7 p.m. at the state prison in Jackson.

Lucas was sentenced to death for the April 1998 killings of 37-year-old Steven Moss, his 11-year-old son Bryan and 15-year-old daughter Kristin, who interrupted a burglary at the family's home near Macon.

Lucas was 19 at the time. His lawyers argued the death penalty was inappropriate because of his youth and lack of maturity. The state countered that those arguments are procedurally barred and that there's no law against executing someone who was 18 or older when a crime was committed.

A judge rejected the challenge and the Georgia Supreme Court also declined to stop the execution.

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4:05 p.m.

Lawyers for a Georgia inmate facing execution Wednesday for a triple murder are asking the state's highest court to stop the sentence from being carried out.

Thirty-seven-year-old Daniel Anthony Lucas is to receive an injection of the barbiturate pentobarbital at 7 p.m. Wednesday at the state prison in Jackson.

Lucas was sentenced to death for the April 1998 killings of 37-year-old Steven Moss, his 11-year-old son Bryan and 15-year-old daughter Kristin, who interrupted a burglary at the family's home near Macon.

Lucas was 19 at the time. His lawyers argue the death penalty was inappropriate because of his youth and lack of maturity. The state counters that those arguments are procedurally barred and that there's no law against executing someone who was 18 or older when a crime was committed.

A judge rejected the challenge and Lucas' lawyers then appealed to the Georgia Supreme Court.

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4 a.m.

Georgia is preparing to execute a man convicted in the 1998 killings of a central Georgia trucking company owner and his two children.

Thirty-seven-year-old Daniel Anthony Lucas is scheduled to die by injection of the barbiturate pentobarbital at 7 p.m. Wednesday at the state prison in Jackson.

Lucas was sentenced to death for the April 1998 killings of 37-year-old Steven Moss, his 11-year-old son Bryan and 15-year-old daughter Kristin, who interrupted a burglary at their home near Macon in central Georgia.

A second man convicted in the killings, Brandon Rhode, was executed in September 2010.

Lucas would be the fifth inmate executed in Georgia this year.