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And oftentimes the killer s hand continues its movement and slides down the blade and can cut the assailant. the other clue they looked for was shoe prints. with so much blood, both the killer and the victim would have stepped in it. crime scene technician jim varnen found several shoe prints and tried to enhance them with a special dye. amino black works because it stains proteins. and it s applied to protein stain, in this case, a blood stain. in several of the enhanced prints, analysts could clearly see the word justin, a well-known brand of texas-made boots. we knew these footwear impressions in blood that had the pattern of a justin heel was most likely going to be from our assailant because it did not match the only other bleeder at that crime scene, which was our victim. unfortunately, these boots weren t unique. ....
It, but let s see if we can make it a little better. i handed it back to him. but enhancing it would come at a price. that would destroy the dna profile of the blood the fingerprint was left in. investigators decided the risk was worth it. the print was sprayed with amino black, a chemical dye that reacts with the proteins in blood. we worked on it a little bit more and we decided that was as good as the print was going to get. the result was a partial print of a fingertip. investigators entered the print into the nationwide fingerprint database of known criminal offenders and the result was bad news. i was not able to come up with a match. that s because the print didn t have enough points of comparison for the computer to process. with no print match, and now no dna, investigators were no closer to solving this murder. q. ....
Transcripts for CNN Forensic Files 20140709 07:12:15 archive.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from archive.org Daily Mail and Mail on Sunday newspapers.
Blade hits bone and it stops. and oftentimes the killer s hand continues its movement and slides down the blade and can cut the assailant. the other clue they looked for was shoe prints. with so much blood, both the killer and the victim would have stepped in it. crime scene technician jim varnen found several shoe prints and tried to enhance them with a special dye. amino black works because it stains proteins. and it s applied to protein stain, in this case, a blood stain. in several of the enhanced prints, analysts could clearly see the word justin, a well-known brand of texas-made boots. we knew these footwear impressions in blood that had the pattern of a justin heel was most likely going to be from our assailant because it did not match the only other bleeder at that crime scene, which was our victim. ....
I handed it back to him. but enhancing it would come at a price. that would destroy the dna profile of the blood the fingerprint was left in. investigators decided the risk was worth it. the print was sprayed with amino black, a chemical dye that reacts with the proteins in blood. we worked on it a little bit more and we decided that was as good as the print was going to get. the result was a partial print of a fingertip. investigators entered the print into the nationwide fingerprint database of known criminal offenders and the result was bad news. i was not able to come up with a match. that s because the print didn t have enough points of comparison for the computer to process. with no print match, and now no dna, investigators were no closer to solving this murder. ....