BOISE -- It's a criminal case that gained international attention.
Amanda Knox, the American student tried and convicted of killing her roommate while studying abroad in Perugia, Italy, back in 2007.
That case has ties in Idaho.
Dr. Greg Hampikian is a professor of biology at Boise State University and the director of the Idaho Innocence Project.
We take cases primarily from Idaho, we're working on several cases right now in Idaho with people who claim to be innocent who are imprisoned, said Hampikian.
By using DNA evidence, the Idaho Innocence Project has helped to exonerate seven people across the country. Hampikian's research has taken him around the world.
Two years ago, by chance he became involved with one of the most high profile international murder cases.
I was trying to study how DNA evidence is used in other countries, and when I looked at the data -- I was appalled, said Hampikian.
The data he was looking at was from the Amanda Knox case, an American student convicted of murdering her roommate at a home they shared in Perugia, Italy. Knox, as well as her ex-boyfriend Raffaele Sollecito, and another man, Rudy Guede, were all convicted in the murder of Meredith Kercher.
The one piece of evidence that tied her to this case had such a low level of DNA with the victim on it that I think it was probably just one of these casual transfers, certainly not from a stabbing, said Hampikian.
Hampikian volunteered his services to Knox's defense team.
After scouring over the evidence at his lab on the BSU campus, Dr. Hampikian says Knox and Sollecito are innocent of the crime.
DNA evidence points to Rudy Guede as the prime suspect.
All of the evidence in that room where she was killed, that was collected the day after the murder, all of it point to Rudy Guede, none of it points to Amanda Knox or Raffaele Sollecito, said Hampikian.
The findings of Hampikian and his team are being used by the Italian defense team.
It's nice to see that our research gets some sort of hearing, said Hampikian.
But Hampikian says he won't be satisfied until the DNA research brings some sort of resolution to the case.
I'm hoping that the case will be reopened, or thrown out, said Hampikian.
Knox and her defense team have filed an appeal. That appeal process will begin May 22 in Italy.