Executions in Missouri
Taylor is the ninth man put to death in Missouri this year and the 11th since November 2013.
The court rejected two appeals without comment, although justices Ruth Bader Ginsburg, Stephen Breyer, Sonia Sotomayor, and Elena Kagan would have voted to grant a request dealing with a challenge to the way Missouri carries out executions.
Leon Taylor is scheduled to die by injection at 12:01 a.m. Wednesday for killing a gas station attendant during a robbery in 1994. Taylor, who is black, was sentenced to death by an all-white jury.
Taylor's lawyers have asked the 8th U.S. Circuit Court of Appeals to grant a stay and have requested clemency from Nixon.
Taylor's execution, which would be the ninth in Missouri this year, is set for Wednesday Nov. 19.
Attorneys for Leon Taylor, who is black, argue that he was sentenced by an all-white jury and that there is concern about prosecutor misconduct during his trial.
The state Supreme Court on Thursday scheduled the execution of 47-year-old Paul Goodwin for Dec. 10. Missouri has executed eight men already in 2014, with the execution of Leon Taylor scheduled for Nov. 19.
The stay will remain in place until the court decides whether to hear Mark Christeson's appeal.
Executions continue because of reliable access to execution drugs, strong state-level support for capital punishment and conservative federal judges who regularly deny inmates' requests for stays.
Mark Christeson was scheduled to die at 12:01 a.m. Wednesday in 1998 killings; justices cited concerns his legal counsel was ineffective.
Fifteen former judges filed a brief Friday claiming Mark Christeson was denied federal court review because his court-appointed attorneys missed a deadline in 2005.
Jesse Driskill, of Lebanon, contends he didn't receive a fair trial because of complications from his anxiety and panic attacks.
Leon Taylor had been scheduled for execution in September, but the court withdrew that execution warrant after his lawyers argued for more time to work on his case.
It would be the ninth execution in Missouri this year and the 11th since November.
Earl Ringo Jr.'s execution was the eighth execution in the state this year and the 10th since November.
Earl Ringo Jr. is scheduled to die at 12:01 a.m. Wednesday at the state prison in Bonne Terre for killing two people during a Columbia restaurant robbery in 1998.
Earl Ringo Jr. is scheduled to die at 12:01 a.m. Wednesday in Missouri for killing two people during a robbery at a Columbia restaurant in 1998. The execution would be the eighth in the state this year.
Earl Ringo Jr., who received his death sentence in connection with a robbery at a Ruby Tuesday in Columbia that resulted in the death of two employees, requested the governor appoint a board of inquiry to examine if a racial factor played a role in his trial.
The Supreme Court ordered Earl Ringo Jr. to be put to death Sept. 10 instead of Leon Taylor. The execution would continue the state's pace this year of scheduling an execution each month in Missouri.
The Missouri Department of Corrections said Michael Worthington was executed by lethal injection at the state prison and was pronounced dead at 12:11 a.m. He is the seventh Missouri inmate executed this year.
John Middleton, 54, died from an injection of pentobarbital, the sixth execution in Missouri this year. Only Florida and Texas, with seven each, have performed more executions.