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

Jessie Hoffman Jr., 46, was put to death in Louisiana for the nearly three-decade old murder of Mary 'Molly' Elliott.

In the lead-up to World War II there were fears that the Germans would attack the UK with poisonous gas, so by 1938 the government had issued respirators to every man, woman and child in the nation.