The Deadly Poison, Ricin

Has claimed the life of a British policeman without ever being used. For days now, the Brits have been arresting terrorists that are in process of manufacturing this deadly poison. Today, during a raid to arrest another suspect, one policeman was stabbed to death and four were injured. Apparently the guy was able to free himself and somehow get hold of a knife. He then killed one and injured four others. My gut feel is they didn't have a chance because most British cops don't carry guns.