JonBenet Patricia Ramsey was a young promising beauty queen at an early age of six. Unfortunately, it was in this age when tragic incident shocked not only the beauty pageant scene but the entire world. The young beauty queen was brutally murdered in Boulder, Colorado. The brutal crime happened in the basement of the young star’s own home 26th of December 1996. Nineteen years has passed, yet, the crime is unresolved. Up until this moment, no one has been convicted of the crime. Experts say that this is due to the fact that when the incident happened, the Boulder Police Department were inexperienced in handling murder and homicide cases. In fact, a lot of people who were extremely interested in this particular case revealed that the authorities were not able to execute the standard operating procedures right after receiving the 911 emergency calls. Also, they did not accept help from more experienced agencies such as the Denver Police Department available nearby. This paper reviews and analyzes the procedural mistakes made by the Boulder Police Department in Boulder, Colorado throughout the course of the kidnapping and subsequent murder investigation. These mistakes are specified and interpreted as to how the department should have handled the investigation in order to protect and preserve the crime scene evidence that was eventually damaged due to carelessness. Next, the theory of the main suspects, John and Patsy Ramsey, as well as a possible intruder are discussed while addressing the physical and circumstantial evidence gathered during the case and how the mistakes of the police investigation might have hindered a conviction. So what really happened? This eBook aims at providing you the answers.