Updated 10/9/2013 6:42
The Missouri Department of Corrections has announced that it will be returning some of its propofol to its supplier, as the company requested almost a year ago.
But questions remain on how the state obtained the drug.
Propofol is a widely-used medical anesthetic, but the Mo. Dept. of Corrections is planning to use it for lethal injection. Missouri's Oct. 23 and Nov. 20 executions would be the first time the drug has ever been used for capital punishment.