Today, bloodstain pattern analysis is routinely used in murder investigations - analysts draw on chemistry, mathematics and physics to determine the area of origin where an injury occurred.
For over 50 years, crime investigators have been playing a grisly game of connect the dots, linking blood spatter at violent crime scenes to ruthless killers. Join two investigations and see how the ever-evolving forensic science of bloodstain pattern analysis helped investigators solve both the 1954 murder of the wife of a prominent doctor and the death of a Las Vegas playboy 40 years later. Both deaths made headlines and led to scandalous accusations, but it was the blood on the walls that told the true story.
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