Here's a good site for per 100,000 crime rates of the largest cities. Baltimore leads the way in murder, at 42/100k, followed closely by Detroit at 41.4/100k, the St. Louis, DC, and Newark. Motown also leads the pack in aggravated assault and car theft.
Next to Camden, NJ, Detroit is the scariest place I've ever had the misfortune of visiting.
Thanks much for the information and the site!