Louisiana has used nitrogen gas to put a man to death, marking the first time the state has used that execution method.

With Hoffman’s execution, Louisiana joins Alabama as the only other state in the U.S. to use the controversial gas method on a person condemned to death.

A Louisiana inmate found guilty of raping and murdering a New Orleans woman is scheduled to be the first person executed via nitrogen gas in that state in 15 years — despite the controversy surroundin