Long Island Killer
To this day, the identity of the suspected serial killer that terrorized Long Island for over 20 years is still unknown. The suspect killed over 10 to 16 people, mostly sex workers, and dumped their bodies in different spots along the South Shore of Long Island, New York.
Although there were different persons of interest, no conclusive evidence has been found, no arrests were ever made, and no detective can take credit for breaking new ground on the investigation.