The Left is nothing if not selective.
Related: "Mass Shootings and Democrats".
Also related: the very useful "Would Cracking Down on Guns in the U.S. Really Reduce Violence?"
There is actually no simple correlation between states’ homicide rates and their gun-ownership rates or gun laws. This has been shown numerous times, by different people, using different data sets. A year ago, I took state gun-ownership levels reported by the Washington Post (based on a Centers for Disease Control survey) and compared them with murder rates from the FBI: no correlation. The legal scholar Eugene Volokh has compared states’ gun laws (as rated by the anti-gun Brady Campaign) with their murder rates: no correlation. David Freddoso of the Washington Examiner, a former National Review reporter, failed to find a correlation even between gun ownership in a state and gun murders specifically, an approach that sets aside the issue of whether gun availability has an effect on non-gun crime. (Guns can deter unarmed criminals, for instance, and criminals without guns may simply switch to other weapons.) . . . .
Left-leaning media outlets, from Mother Jones to National Journal, get around this absence of correlation by reporting numbers on “gun deaths” rather than gun homicides or homicides in general. More than 60 percent of gun deaths nationally are suicides, and places with higher gun ownership typically see a higher percentage of their suicides committed with a gun. Focusing on the number of gun deaths practically guarantees a finding that guns and violence go together. While it may be true that public policy should also seek to reduce suicide, it is homicide — often a dramatic mass killing — that usually prompts the media and politicians to call for gun control, and it is homicide that most influences people as they consider supporting measures to take away their fellow citizens’ access to guns.