HOUSTON (AP) — Louisiana is set this week to execute a man by nitrogen gas ... states have used five different execution ...

Start with the fact that almost all veterinary scientists consider nitrogen gas too cruel even for animal ... argue the full merits of his case for a different method of death.

Hoffman himself testified at the hearing and requested that the state use a different method to execute him, per NOLA.com. Alabama is the only state to use nitrogen gas for executions, and it has ...

Another difference: Alabama's execution protocol allows death row inmates to choose whether to be put to death with nitrogen gas. In Louisiana, state law says the decision is up to the corrections ...

This came after federal Judge Shelley Dick blocked Louisiana from using nitrogen gas for the execution of Hoffman.Hoffman has requested a different method for execution. The decision to use ...

A convicted murderer was put to death in a Louisiana prison using nitrogen gas, the first time the state has used the controversial method as it resumed executions after 15 years. Jessie Hoffman ...

If Louisiana carries out the execution, it would join Alabama as the only two states to use nitrogen ... five different execution methods: lethal injection, electrocution, lethal gas, firing ...

The method of using lethal gas to carry out an execution has recently shifted from cyanide to nitrogen. Throughout history, the states have used five different execution methods: lethal ...

Lethal Injection, Firing Squad and Nitrogen ... gas to put a prisoner to death. Since the U.S. Supreme Court lifted its ban on capital punishment in 1976, states have used five different execution ...