Ohio is the first state in the U.S. to use a new two-drug procedure in executions. 53-year old Dennis McGuire, convicted of raping and killing a pregnant woman in 1989, was executed on Thursday at the Ohio state prison.
The new method, developed due to the limited supply of pentobarbital, uses a mixture of midazolam, a sedative, and hydromorphone - a pain killer. Pentobarbital, a drug that can cause death through respiratory arrest, has been limited due to objections made by the manufacturers themselves.
The convicted McGuire previously made an appeal to the U.S. Supreme Court, asking for a stay of execution, because the drug was never tested in the U.S. and could cause him severe pain. The court has denied his request on Wednesday.
She was seven months pregnant.