This interactive visualization maps Boston crime incident reports by neighborhood, with points colored by Uniform Crime Report category. A linked time-series histogram below the map shows the total number of incidents over time and includes a brush that filters the map to a selected date range. The map uses a D3 geoAlbers projection with geoPath to render TopoJSON neighborhood boundaries, while React manages the state for the brush selection and color legend. Data comes from a CSV of Boston crime reports.