"Every year since 1950, the number of American children gunned down has doubled."
Did you know that?
It is just as well if you did not, because it is not true.
It takes no research to prove that it is not true.
If there had been just two children in America gunned down in 1950, then doubling that number every year would have meant that, by 1980, there would have been one billion American children gunned down -- more than four times the total population of the United States at that time.