In reality, those rare few cases with good forensic evidence are the ones that make it to court.

Many of the less prolific killers' stories go unheard because they simply don't make good books.

In reality, serial killers are of average intelligence.

Evidence can vary depending on the circumstances, the weather, and how long it has been hanging around.

Approximately 50% of the cases are filed in the federal court, where standards for scientific evidence are far more rigorous.

Injunctions historically are issued in all but the most rare cases.