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Transcripts for CNN Forensic Files 20150412 05:41:00

Close. so certainly it was a good possibility that it might be involved. the sweatshirt was given to forensic analyst mary wong. since the killer used a .38-caliber handgun, there was the potential of gunshot residue on the sleeves. when a weapon is discharged, a cloud of gas is formed and then these particles are then deposited on any surface in the vicinity of the discharge. wong processed the sleeves and cuffs with a stub sampler, an aluminum disk with a carbon tape adhesive surface. the sample was bombarded with electrons, and the x-rays revealed three chemical elements lead, antimony and barium. if those three elements are present, then that leads me to believe that that particle is actually a primal gunshot residue particle. ....

Dark Sweatshirt , Mary Wong , Gunshot Residue , Stub Sampler , Carbon Tape Adhesive Surface , Aluminum Disk , Gunshot Residue Particle , X Rays , Chemical Elements ,

Transcripts for CNN Forensic Files 20140613 06:11:00

Involved. the sweatshirt was given to forensic analyst mary wong. since the killer used a .38-caliber handgun, there was the potential of gunshot residue on the sleeves. when a weapon is discharged, a cloud of gas is formed and then these particles are then deposited on any surface in the vicinity of the discharge. wong processed the sleeves and cuffs with a stub sampler, an aluminum disk with a carbon tape adhesive surface. the sample was bombarded with electrons, and the x-rays revealed three chemical elements lead, antimony and barium. if those three elements are present, then that leads me to believe that that particle is actually a primal gunshot residue particle. this meant kevin rice s killer was wearing this sweatshirt. ....

Dark Sweatshirt , Mary Wong , Gunshot Residue , Stub Sampler , Carbon Tape Adhesive Surface , Aluminum Disk , X Rays , Chemical Elements , Kevin Rice , Gunshot Residue Particle ,

Transcripts for CNN Forensic Files 20140228 09:41:00

So, certainly, it was a good possibility that it might be involved. the sweatshirt was given to forensic analyst mary wong. since the killer used a .38-caliber handgun, there was the potential of gunshot residue on the sleeves. when a weapon is discharged, a cloud of gas is formed and then these particles are then deposited on any surface in the vicinity of the discharge. wong processed the sleeves and cuffs with a stub sampler, an aluminum disk with a carbon tape adhesive surface. the sample was bombarded with electrons, and the x-rays revealed three chemical elements lead, antimony and barium. if those three elements are present, then that leads me to believe that that particle is actually a prime of gunshot residue particle. [ shots ] ....

Dark Sweatshirt , Gunshot Residue , Mary Wong , Stub Sampler , Carbon Tape Adhesive Surface , Aluminum Disk , X Rays , Chemical Elements , Gunshot Residue Particle ,