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JEFFERSON CITY, Mo. (KSDK) – The U.S. Supreme Court overruled a stay of execution granted to Allen Nicklasson by the 8th Circuit Court of Appeals Thursday, clearing the way for his execution.

Nicklasson was pronounced dead at 10:54 p.m. It was initially scheduled for 12:01 a.m., but was delayed due to concerns about Nicklasson's legal representation. The state then appealed to the Supreme Court, which overturned the stay of execution.

Nicklasson received the death sentence in 1996 for the 1994 murder of Richard Drummond, who Nicklasson shot after he stopped to help him and two friends who were stranded on the side of a Missouri highway.

"The highest court in the nation has removed the last restriction to carrying out the lawfully imposed punishment of Allen Nicklasson," Koster said in a news release. "While the sentence carried out this evening cannot lessen the loss for Mr. Drummond's family, it nonetheless will give them the knowledge that justice has been done. My thoughts and prayers tonight are with the family and friends of Mr. Drummond."

Nicklasson is the 70th execution in Missouri since 1989. His last meal was meat pizza, orange juice, gummy bears and M&Ms.

Missouri uses the sedative pentobarbital to execute inmates. It used the drug for the first time in last month's execution of serial killer Joseph Paul Franklin.