From the October 2, 2017 Guardian which has a very interesting visual of the results of mass shootings

The attack at a country music festival in Las Vegas that left at least 58 people dead is the deadliest mass shooting in modern US history – but there were six other mass shootings in America this past week alone.

No other developed nation comes close to the rate of gun violence in America. Americans own an estimated 265m guns, more than one gun for every adult.

Data compiled by the Gun Violence Archive reveals a shocking human toll: there is a mass shooting – defined as four or more people shot in one incident, not including the shooter – every nine out of 10 days on average.

 

 

Source: 1,516 mass shootings in 1,735 days: America’s gun crisis – in one chart | US news | The Guardian