I have not yet found authoritative documentation for the following, which was posted on FR, but I'm still looking...
GUN CONTROL (2013)
"The U.S. is third in murders throughout the world. If you remove Chicago, Washington, D.C., New Orleans and Detroit then the U.S. is fourth from the bottom. These are four cities with the toughest gun laws in the nation and, of course, these are four cities ruled by Democrats."
http://www.fbi.gov/about-us/cjis/ucr/crime-in-the-u.s/2011/crime-in-the-u.s.-2011/tables/table-6
You’ll have to scroll through the list, and tabulate the results, then go to the FBI’s total crimes list for the U.S. and get the total murders, but it’s better than nothing for a starting point.
You can also do the same for rape, and other violent crimes.
There are separate tables at other (U.N., IIRC) sources that list countries by crime rates.