It was the fifth time nitrogen gas was used in the U.S. after four executions by the same method — all in Alabama.

After Alabama carried out the country's first known execution by nitrogen gas last year, the state's attorney general delivered a message to other states: "Alabama has done it, and now so can you." ...

It was the fifth time nitrogen gas was used in the U.S. after four executions by the same method — all in Alabama. Three ...

Louisiana plans to use nitrogen gas to execute death row inmate Jessie Hoffman next week. Here's what to know about the ...

Louisiana's protocol says death row inmates will be forced to breathe pure nitrogen through a respirator mask for 15 minutes or for 5 minutes after the inmate's heart rate reaches a flatline on an EKG ...

A convicted murderer and Louisiana death row inmate had his appeal denied hours before he is set to be executed by nitrogen ...

Recent executions in South Carolina and Louisiana have sparked more debate amongst Americans. Does Florida use nitrogen gas ...

It marks the first time Louisiana has carried out the death penalty in 15 years, and the first time the state has used the ...

Jessie Hoffman Jr., 46, was declared dead shortly after 7 p.m. after he inhaled the lethal gas through a fitted full-faced ...

Until Tuesday, only one state, Alabama, had used nitrogen gas to put inmates to death. The state made history last year with its first such execution, and has conducted three others using nitrogen ...

In a failed last-ditch appeal to the U.S. Supreme Court, lawyers for condemned inmate Jessie Hoffman had argued that ...