Quite frankly, considering that the objective of many of the early "gun control" laws, especially here in the South, was to disarm everyone not a WASP, I am amazed at this result.
I would challenge these "researchers" (I suspect an agenda there) to do some honest research on the origins of gun control. with emphasis on the ethnicity of the groups targeted by those laws.
Considering the level of violence both within and directed at the black community, I am more than a little shocked that more law-abiding black citizens are not armed to protect themselves and their families. As an example, we are at forty-two homicides and counting for the year here in Montgomery; almost all, if not all, of those homicides are black.