Huntington, West Virginia prom night murders
The Prom Night Murders is an unsolved homicide case that occurred on May 22, 2005, in Huntington, West Virginia, when four teenagers, 16-year-old Megan Poston, 17-year-old Michael Dillon, 18-year-old Eddrick Clark, and 19-year-old Donté Ward, were shot and killed on their prom night, on Charleston Avenue. Despite an extensive investigation, no suspect has been identified, and the case remains unsolved.
Source: Wikipedia — Huntington, West Virginia prom night murders (CC BY-SA 4.0)