Blood Samplea 41 News Today : Breaking News, Live Updates & Top Stories | Vimarsana

>> but in the early 2000s, new legislation in california would grant kevin cooper the right to dna testing. >> all these years that my case was in the appeals courts, i never got a fair hearing, i would always get denied for one reason or the next. so i felt very bad. very discouraged until dna testing came along, and i had a shot. >> the state would perform dna tests on blood sample a-41, taken from the ryens' hallway and blood on the tan shirt thought to have been thrown from their stolen station wagon. the results would determine whether kevin cooper lived or died.

Cooper's defense. >> to kevin cooper's shock and the defense's shock, the testing came back saying that there was kevin's dna on a-41. >> but for hile, the dna results raised a red flag. >> back in 1983, the lab technician, daniel gregonis he testified that he had consumed a-41 during his testing. now gregonis was asked to make sure that a-41 still existed. we have a photograph of the envelope that shows the date that he took it out and when he resealed it. so we know that he had a-41 on his person for 24 hours before he returned it. he'd also had nearby, in the lab, the vial of kevin cooper's...

A-41 for additional dna testing. results from the tan t-shirt also changed drastically. at the original trial, the t-shirt was only shown to have doug ryen's blood on it. >> when the t-shirt was tested at this time, there was additional blood located on the upper part of the t-shirt, across the chest that had not been noticed or photographed or even reported previous to this time. >> cooper's defense argued that the new blood on the t-shirt and the newly discovered blood found on a-41 could only have come from one place, the vial of cooper's blood that the lab technician daniel gregonis had ac...

Was 100% beyond a shadow of a doubt. kevin cooper was in that house and bled at that crime scene. it really verified what you knew all along, that kevin cooper committed these horrendous murders. >> only one out of 300 billion people could have matched a-41. you could go to galaxies far beyond the stars and still not find a match for a-41 that cooper supplies. >> once the dna test put kevin cooper in the home he said he never went into and on a t-shirt with doug ryen's blood on it, that was it for him. >> debra saunders, once convinced of cooper's innocence now published scathing articles abou...

The defense's shock, the testing came back saying that there was kevin's dna on a-41. >> but for hile, the dna results raised a red flag. >> back in 1983, the lab technician, daniel gregonis he testified that he had consumed a-41 during his testing. now gregonis was asked to make sure that a-41 still existed. we have a photograph of the envelope that shows the date that he took it out and when he resealed it. so we know that he had a-41 on his person for 24 hours before he returned it. he'd also had nearby, in the lab, the vial of kevin cooper's blood that was taken from him when he was arrest...