Here's a thread where it's discussed....
A collection of gun/gun control/ gun culture links for your research pleasure
Even professionals have their personal agendas, so it pays to become familiar
with their arguments. Even though I cite Kleck's work, I discount it by an order
of magnitude to bring it in line with the fed study. Both have their limitations, &
one needn't be an expert on statistics or guns to apply some skepticism.
Skepticism is fine and dandy but it sure helps with a study of your own plus a life professional career to back it up like Kleck had.
Gary Kleck - Wikipedia
IMO, Kleck is credible.
I see many here also stated their skepticism but didn't offer much else outside of opinions still.