This fork of a network graph displays relationships among nodes representing a murder, victims, suspects, and a witness, with link weights indicating connection strength. The visualization uses d3.forceSimulation to position nodes and render SVG circles and text labels, with purple links and yellow node circles styled via CSS. Data comes from an inline JSON file containing seven nodes and seven weighted links. The code loads both d3.v4 and an older d3.v2 script, though the simulation primarily relies on the v4 API.