Does the use of midazolam sedative in executions violate the 8th Amendment? Supreme Court to decide.

States use sedatives when they are executing people. States used to use phenobarbital, which then became harder for states to use. But some states switched to another sedative, midazolam. The question before the Supreme Court is whether midazolam violates the 8th Amendment (barring cruel and unusual punishment) since it has no pain-reducing properties.

Article here (via ABA Journal).