Chicago being a state and not a city has still managed to harbour and produce several hugely notorious serial killers over the years. These serial killers have left tragic and terrifying marks in the history of Chicago in the way they conducted their murders in a gruesome fashion. They either stabbed, poisoned, strangled, burnt, shot, molested or suffocated their victim to death. Some of the serial killers were business owners, others were clowns and even drifters but they all shared the same trait a disregard for human life and a sense of cruelty.

Some of the serial killers on this list escaped upon their arrest, others committed suicide and most of them were captured and exposed to severe punishment by law. It is believed that some of the serial killers killed even more people than they were convicted of killing, and the true toll may never be known. Therefore, this episode is going to explore some of the notable serial killers and how they committed unlawful acts in the streets of Chicago.