This interactive network graph depicts a crime investigation, with nodes representing a murder, victims, suspects, and a witness, connected by weighted links. The visualization uses a traditional force-directed layout to position the nodes, allowing users to click and drag them around the canvas. Built with React and D3 v4, the graph is rendered as an SVG and loads its data from a JSON file. The code relies on the deprecated `d3.layout.force` API and `d3.select` to manage the simulation and rendering.