An Alabama inmate found guilty of murdering a hitchhiker 30 years ago on Thursday became the third person in America to be executed using nitrogen gas, furthering the ongoing debate about whether the method is an inhumane way to carry out death penalty sentences.

An Alabama prisoner convicted of the 1994 murder of a female hitchhiker is slated to become the third person executed by nitrogen gas.

A man convicted in the murder of a hitchhiker in Alabama was executed by nitgrogen1994 murder of a female hitchhiker Is scheduled to become the third person in

Grayson’s three accomplices managed to escape execution because they were under 18 at the time of Deblieux’s murder

Grayson was one of four teenagers convicted of capital murder in the torture, bludgeoning and mutilation of Vickie Lynn Deblieux on Feb. 21, 1994.

A man convicted in the 1994 killing of a female hitchhiker in Alabama was put to death Thursday evening in the nation’s third execution using nitrogen gas.

Alabama has so far been the only state to execute inmates with nitrogen hypoxia, but two other states allow it as a method of execution.

Atmore: An Alabama man convicted in the 1994 killing of a hitchhiker cursed at the prison warden and made obscene gestures with his hands shortly before he was put to death Thursday evening in the nation's third execution using nitrogen gas.