Ohio had a similar botched execution in January.

After 26-minute execution in Ohio, concerns raised over lethal injection

Dennis McGuire’s execution on Thursday took 26 minutes from the time the drugs were administered to when he was pronounced dead, according to The Associated Press.
During that time he “gasped, made snorting sounds and repeatedly opened and shut his mouth,” according to the report.
McGuire, 53, was sentenced to death in 1989 for the rape and stabbing death of Joy Stewart, 22, who was seven months pregnant.
His execution was the longest in Ohio since it resumed capital punishment 15 years ago, but it was unique for another reason as well. McGuire was given a never-before-tried combination of the sedative midazolam and the painkiller hydromorphone.