This visualization, titled “Making Sense of the Senseless,” displays U.S. mass shooting incidents as a bar chart of total victims per year, with bar colors encoding the shooter’s age. It uses the vega-lite-api to construct the chart, with d3.csv loading the dataset from a GitHub gist. The chart is rendered as an SVG via vega and vega-lite, with custom configuration for axis styles and tooltips enabled through vega-tooltip. The visualization emphasizes readability with a dark color scheme and large fonts.