Did Constitutional carry facilitate Tucson shootings?

That's in New York City. Cosmopolitan, sophisticated New York City, in the liberal, tolerant northeast (or so we're told). Should we expect a less racially discriminatory application of "stop and frisk" (never mind the Fourth Amendment) in Arizona, described by Pima County's Sheriff Dupnik (who is another vocal critic of Constitutional carry) as a "mecca for racism and bigotry"? [More]

That's today's St. Louis Gun Rights Examiner. Please give it a look, and tell a friend.