While the United States Postal Service certainly doesn’t approve of the use of the term, “going postal” became an accepted part of slang language, recognized as early as 1993 when it was identified by the Los Angeles Times newspaper. By the end of 1993, there had been five mass attacks near or in postal facilities within a seven year time span.
In 1986 in Edmond, Oklahoma, Patrick Sherrill killed 14 employees and wounded six others before committing suicide. Patrick Sherrill was, at the time, employed as a postman (postal delivery person).
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The remainder of this article is part of the book "Active Killers and the Crimes They Perpetrated," available in print or ebook via Amazon.
