Page 44 - Forensics Lab News Today : Breaking News, Live Updates & Top Stories | Vimarsana

>> gorton served some prison time for these assaults in florida before moving back to michigan. since both murder victims had been sexually assaulted and investigators had dna of the killer, they wanted to know whether it was gorton's dna. so they put gorton under a 24-hour surveillance. they followed him to a local roller skating rink where he took his children. undercover officers watched gorton eat pizza and drink soda from a styrofoam cup. when gorton left, an officer rushed to the table, confiscated gorton's cup, and took it to the forensics lab. the sample was tested immediately. >> dna ...

Happen. i have worked many cases where right after a crash, ptsd and they cause memory difficulty, they come back on occasion. >> that's interesting. how is the fbi going to figure things out? >> i have worked on cases where the shattering of windshields can be significant and the fbi can examine that particular pattern and the pattern of lines emanateing from the impact point and they can get an idea of the shape of the projectile the force with which it was coming. since it's kind of an uneven pattern, that impact is probably not a bullet. but their forensics lab is pretty good about analyzi...

>> and about a mile from the crime scene, search dogs found a potentially crucial piece of evidence. >> while they were walking around in the roadway, they discovered a red ski mask with blue outlines on it next to the roadway, which was in direct line of sight to the rear of the victim's property. >> this ski mask, red with dark trimming around the eyes, was similar to the one described by rosana shaw. at ron's autopsy, the medical examiner confirmed that ron shaw was shot three times with a .38-caliber weapon. >> there were two torso shots. one of those torso shots, the bullet remained. the ...

Then we decided to look around the other bedrooms. that's when we discovered the spent shotgun shell in one of the bedrooms. >> the shell was from a .16-gauge shotgun. it was immediately sent to the forensics lab for testing. an analyst placed it under a microscope to compare it to the .16-gauge shotgun shell found in the andrews' garage. he looked specifically at the brass casings at the base of the shells. when casings are ejected, each gun creates a unique mark on the brass. >> and depending on the amount of correspondence and the preponderance of these matching striations, an examiner can ...

Leaving his shoe impression? >> the theory of any crime scene investigation is that the suspect is always going to leave something of them self at the scene or take something away that's going to link them to the crime. >> the shards were collected and sent to the forensics lab. >> glass is such a smooth, perfect surface that it's really the best surface we can possibly hope for to get a footwear impression on. >> the linoleum floor was dusted with a powder called aurora pink that sticks to any moisture present. then, using what is called an alternate light source, any powder that clings to th...