A murderer who killed his ex-girlfriend's lover and then raped her has been executed.
Russell Bucklew died by lethal injection over the murder, kidnap and rape from 2006.
He was pronounced dead at 6.23pm Central Daylight Time (CDT) at Missouri's death chamber in Bonne Terre.
The 51-year-old shot and killed Michael Sanders at his trailer home in southern Missouri.
He then raped his former girlfriend Stephanie Ray, who had earlier fled to stay with Sanders.
For his final meal, the murderer ordered a gyro sandwich, a smoked brisket sandwich, two orders of French fries, a cola and a banana split.
The case hit the news in April this year after the US Supreme Court ruled in a narrow 5-4 decision that Bucklew's execution could go ahead .
His legal team had argued that death by lethal injection would cause him "undue pain" by rupturing blood-filled tumours on his body caused by a congenital condition called cavernous hemangioma.
Justice Neil Gorsuch, a Donald Trump appointee, said in his decision: "The Eighth Amendment does not guarantee a prisoner a painless death - something that, of course, isn't guaranteed to many people, including most victims of capital crimes."
KFVS news anchor Kathy Sweeney witnessed Bucklew's execution and said there were no complications.
"His feet were twitching under the sheets, there was a sigh and then no more movement," Sweeney said in a broadcast.
