Rejecting what it described as a “novel” argument about a voter-approved constitutional amendment, the Florida Supreme Court refused to halt the scheduled Thursday evening execution of death row inmate Jose Antonio Jimenez.

The justices, in a unanimous decision, denied a motion to stay the execution of Jimenez, 55, who was convicted in the 1992 murder of a Miami-Dade County woman. Jimenez also had two cases pending Wednesday at the U.S. Supreme Court, according to an online docket. The execution is scheduled for 6 p.m. Thursday at Florida State Prison.