A look at Oklahoma's execution drug secrecy case

The Oklahoma Supreme Court ruled late Wednesday that death row inmates Clayton Lockett and Charles Warner are not entitled to know the source of the drugs that will be used to kill them. The court, which is the highest in the state for civil cases, had previously halted their executions, even though critics said only the Oklahoma Court of Appeals can issue stays. The Court of Appeals is the highest in the state for criminal cases. Here is a look at the inmates' legal challenge:
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