This line chart tracks the total number of shootings per year from 2010 to 2016, using a single purple trend line with hover interactions that reveal the percentage breakdown by race (Latino, Black, White, Asian, Other, Unknown) for each year. The visualization uses D3 v4 with SVG rendering, employing `d3.scaleTime`, `d3.scaleLinear`, and `d3.line` to construct the chart, while a `d3.bisector` enables precise date-based lookup during mouse movement. An overlay rectangle captures mouse events, updating a focus circle and dashed hover-lines to display the demographic percentages in a text label. The data comes from a local JSON file (data.json), and the chart is built with Blockbuilder.org, using a clean light background and minimal axis styling.