As noted below, a Florida jury has assessed damages against a firearms distributor in a murder case, while completely absolving the actual murderer (presumably because there was no money to be squeezed from that particular turnip).

Dave Kopel gives this topic a much more thorough treatment than yours truly. Note, however, the involvement of the Brady Center.

It's amazing how people yell and scream about our loss of civil liberties, and then turn around and support institutions like the Brady Center.