NASHVILLE, Tenn. (AP) — As Tennessee eyes a wave of executions, attorneys for 33 death row inmates on Tuesday filed a lawsuit seeking to strike down the state's new three-drug combination for lethal injections. The lawsuit in Davidson County Chancery Court claims that the three-drug combination instituted in January in Tennessee and unused there so far presents a substantial risk of serious and severe pain and suffering. Similar or identical combinations were used in botched executions in Alabama, Arizona, Florida, Ohio, Oklahoma and Virginia, the group of attorneys said in a news release.