The following article was copied from the Washington Post, link here.
I've mirrored the article in case of the WP deleting or moving the article.  Everything below this line is directly from the WP word for word.

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Homicide Rates in D.C. and Other Major Cities

Despite a ban on handgun ownership passed in 1976, the District's homicide rate has remained generally higher than those of other cities.


SOURCE: FBI's uniform crime reports | The Washington Post - November 13, 2007