| Crime |
On July 25, 2002, a Pittsburgh college student, 18, was
threatened with a gun and sexually assaulted in her Shadyside apartment. |
| Evidence |
The victim's jeans and t-shirt contained biological evidence. |
| DNA |
The Allegheny County crime lab developed DNA data from the two
evidence items. |
| Match |
The lab's manual analysis found a match statistic of 630
thousand between the t-shirt and Ralph Skundrich. Their
statistic for the jeans was 280 thousand. |
| TrueAllele |
On the same data, the computer's statistic connecting the
t-shirt with Mr. Skundrich was 4.04 quadrillion. For the jeans,
the match statistic was 2.1 quadrillion. |
| Cybergenetics |
On January 10, 2014, Dr. Mark Perlin testified at the Pittsburgh trial about the DNA match statistics in this case. |
| Outcome |
Mr. Skundrich was found guilty on multiple counts of involuntary deviate sexual intercourse and sexual assault. He faces a sentence of 75 to 150 years. |
