The Washington Post has mapped the murders of 37 people inwards D.C. in addition to Maryland who were killed because they were cooperating amongst police trace enforcement or because their killers idea that they mightiness cooperate.
Witness Killing Since 2004 uses Mapbox to plot the murder locations of the 37 victims. As you lot scroll downward the page the map sidebar scrolls through the details on each of the 37 victims in addition to highlights their place on the map. You tin filter the results past times those victims who were offered witness protection, those who weren't in addition to those who refused protection.
H5N1 timeline higher upwards the map indicates how long later the crimes they witnessed the victims were killed.