A convicted murderer and rapist in Louisiana was executed by nitrogen gas Tuesday night, marking the state’s first death row killing in 15 years — and the first time the lethal method was used ...

Hours before a Louisiana man is scheduled to be put to death Tuesday evening, his attorneys were hoping for a last-minute court ruling to halt the state’s first execution by nitrogen gas.

Louisiana used nitrogen gas to put Jessie Hoffman Jr., 46, to death Tuesday evening in the state's first execution in 15 years. Nitrogen gas has been used just four other times to execute a person ...

Community groups in Louisiana have filed a federal lawsuit alleging a state law that regulates air-pollution monitoring violates their constitutional rights. Private organizations have been using ...

A Louisiana death row inmate on Tuesday was executed with nitrogen gas, a method that has never been used before in the state. "Louisiana has successfully used nitrogen hypoxia to carry out the ...