I'm not aware of a case where a U.S. woman was given such a light sentence, but I am aware of this case.
Karla Faye Tucker,
found guilty of murdering a couple with a pick ax in 1983, was executed by lethal injection at a Huntsville, Texas, prison on Feb. 3. Americans debated the ethicality of the death penalty as they anxiously waited to hear if Tucker, who became a born-again Christian while in prison, would be spared at the last minute. The U.S. Supreme Court and Texas Governor George Bush denied her clemency.