Alva Review-Courier -

MONTGOMERY, Ala. (AP) — An Alabama death row inmate filed a lawsuit Thursday that challenges the constitutionality of nitrogen gas executions, arguing that the first person in the nation put to death by that method shook violently for several minutes in "a human experiment that officials botched miserably."

The lawsuit filed in federal court in Alabama alleges the January execution of Kenneth Eugene Smith by nitrogen gas was torturous and "cannot be allowed to be repeated." The lawsuit says descriptions from witnesses that Smith shook and convulsed contradicted the state's promises to federal...