Unsolved crimes are criminal cases that have not been resolved or where the perpetrator has not been identified. These cases can include various offenses, such as homicides, thefts, or assaults. Law enforcement agencies often continue to investigate these cases, hoping to gather new evidence or leads that could help solve them. Many unsolved crimes gain public attention, sometimes leading to renewed interest through media coverage or documentaries. Cold cases, as they are often called, can remain open for years or even decades, with detectives revisiting them as new forensic techniques or technologies become available.