| Crime |
On August 14, 2011, during an attempted robbery, a man shot John Winston IV twice, leaving him to die in a Richmond, VA parking lot. |
| Evidence |
A plastic bag of painkillers was recovered at the crime scene. |
| DNA |
Virginia's Department of Forensic Science developed DNA mixture data from the outside of the bag. |
| Match |
The lab's manual analysis did not generate a match statistic. |
| TrueAllele |
On the same DNA data, the computer's statistic connecting the bag with Otis Madison was 1.2 billion. |
| Cybergenetics |
On October 29, 2012, Dr. Mark Perlin testified at the trial about the computer's DNA match statistic in this case. |
| Outcome |
Otis Madison was convicted of first-degree murder and a related firearm charge. He was sentenced to 35 years in prison. |
