UPDATE: 6/18 7:56pm
STARKE, Fla. (AP) - Florida has executed a man who fatally stabbed his wife and her young son in 1985.
It is the third U.S. execution in less than 24 hours since a botched April lethal injection in Oklahoma.
The governor's office says John Ruthell Henry was pronounced dead at 7:43 p.m. Wednesday.
The 63-year-old was convicted and sentenced to death for fatally stabbing his wife, Suzanne Henry.
He also was convicted of fatally stabbing Suzanne Henry's 5-year-old son hours after the woman's murder.
Henry previously had pleaded no contest to second-degree murder for stabbing his common-law wife, Patricia Roddy, in 1976. He served less than eight years and was released in 1983.
The U.S. Supreme Court turned down a last-second appeal by attorneys who argued Henry wasn't mentally stable enough to comprehend his death sentence.
UPDATE: 6/18 7:49pm
Florida has executed John Ruthell Henry.
He was convicted of killing his wife, her five-year-old son and his common-law wife.
It's the third execution in the U.S. in the last 24 hours.
UPDATE 6/18 7:25pm
STARKE, Fla. (AP) _ The U.S. Supreme Court has refused to grant a last-minute reprieve for a Florida inmate set to be executed in the 1985 killing of his estranged wife and her young son.
The justices Wednesday evening turned down an appeal for 63-year-old John Ruthell Henry. The Tampa-area man is scheduled to be given a lethal injection later Wednesday. The court rejected Henry's argument that he may be too mentally incompetent for execution.
Henry was convicted of fatally stabbing Suzanne Henry at her home and then killing her 5-year-old son, whose body was found in a neighboring county. Henry had been paroled two years earlier after serving time for the slaying of his previous wife.
It would be the 13th execution in Florida since April 2013, and the 18th since Republican Gov. Rick Scott took office in 2011.
Florida is scheduled to execute a man who fatally stabbed his wife and her young son in 1985.
John Ruthell Henry is scheduled to die at 6 p.m. Wednesday by lethal injection at Florida State Prison in Starke.
The 63-year-old was convicted in Pasco County of fatally stabbing his wife Suzanne Henry. Gov. Rick Scott signed Henry's death warrant for that murder.
He also was convicted in Hillsborough County of fatally stabbing Suzanne Henry's 5-year-old son near Plant City, hours after Suzanne's murder.