Harvard did a study on banning guns and if it would help the death rate. You can look up the study if you like. However, if you are in
the let's ban em group you might like to read the last para. or two.

Harvard Journal of Law & Public Policy [Vol. 30
Over a decade ago, Professor Brandon Centerwall of the University
of Washington undertook an extensive, statistically sophisticated
study comparing areas in the United States and Canada to
determine whether Canada’s more restrictive policies had better
contained criminal violence. When he published his results it was
with the admonition:
If you are surprised by [our] finding[s], so [are we]. [We] did
not begin this research with any intent to “exonerate” handguns,
but there it is—a negative finding, to be sure, but a negative
finding is nevertheless a positive contribution. It directs us
where not to aim public health resources.150
150.