I did not say that anyone is over or under reporting. All i said was that each country has their own way of classifying crime. I might call it a hate crime or terrorism and you might call it homicide. I might be fine with abortion and you might call it feticide and include it in your homicide rates. These are just examples.
That said i just researched california again to see where your getting your info from and i realized that different sites report it differently. So lets go with yours for now. Strictest gun laws and their number 17 out of 50. You need to do better than that .
I still stand by my original position that the current law (that was on the floor last week) would do nothing to touch the murder rates but would just make a big show for nothing.