Thousands have been killed by gun violence in the US - but what does that mean?have taken FBI crime report data detailing every gun murder in 2010 (and worked with Jerome Cukier, who had also produced this with the same data) - and then combined the numbers with WHO demographic statistics to work out the impact in years lost by looking at the "age distribution of US deaths, paired with a likely cause of death at that age". See what a year of gun violence looks like - and click the buttons at the bottom to see the data by age, race, gender and gun type