I see basically four states: New York, Virginia, Hawaii and Alaska whose results supports the thesis of the report’s essence. I see no mention of California, Illinois, Michigan, Maryland (Baltimore) nor any other big urban city other than NYC. One might think “cherry picking”.
To me a reputable report of the “report” would include a list of all the states and a large set of cities as well.
A reputable study would factor in the demographics, note the disproportionate number of black underclass homicides, and separate things out by demographics.
I notice they didn't mention Vermont, a state which had NO license needed to carry, plus low homicide rates.