In 1993, Thomas Lavy attempted to cross the Canadian border carrying 130 grams of ricin -- an amount that, if administered in individual doses, would be sufficient to kill over 32,000 people -- as well as four guns and $89,000 in cash. Canadian officials returned Lavy to the United States because of the amount of cash he was carrying. A search of Lavy's cabin by law enforcement officers revealed that he possessed mail-order books, such as The Poisoner's Handbook, Silent Death, and Get Even: The Complete Book of Dirty Tricks, which, among other things, describe how to make and use ricin. Lavy committed suicide before he could be tried.