Cold case refers to a crime or accident that has not been solved and is not the subject of current criminal investigation or civil litigation, but for which new information could emerge from new witness testimony or re-examined archives, as well as retained material evidence. New technical methods developed after the case can be used on the surviving evidence to re-analyze the causes, often with conclusive results.

Cold case , Call it a set - a show - combination of underground sounds ,sounds when u close your eyes it means something to you something you can only define but will stay unsolved--Cold case