Page 22 - Forensics Lab News Today

Leaving his shoe impression? >> the theory of any crime scene investigation is that the suspect is always going to leave something of themself at the scene or take something away thats 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 its 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 moi...

Who had prior arrests for petty theft and burglary. >> a suspect happened to be wearing spalding tennis shoes like we had told the investigators that they were looking for. >> since these are spaldings and we already know that we need spaldings, we needed to have these analyzed right away because this could be the big break in audreys shooting. >> police sent the shoes to the forensics lab, where they were inked and printed. using transparent overlays, amy michaud compared them to the two partia...

The metal fragments found on arlene jensens body and in her apartment were sent to the forensics lab for testing. under a microscope, scientists could see that the fragments were different shapes and sizes. the surfaces were corrugated and the composition of the metal varied from piece to piece. >> they were made of various types of steel, various grades of steel, various grades of brass. >> the unique shapes and the fact some were hollow were a clear indication of their origin. >> what that mea...

The other bedrooms. thats 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...

Lees dna sample was sent immediately to the forensics lab for testing. it matched the biological samples from all five victims. >> just a sense of relief and joy come over me. you know, and its like, i had to smile. i said, "we got him." >> derrick todd lee was arrested and charged with first-degree murder. >> the first thing i would tell him is hes a coward. he picked on women. he took advantage of their good nature. >> after his arrest, investigators learned that lees dna matched skin cells un...

>> 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 gortons 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, con...

Happen. i have worked many cases where right after a crash, ptsd and they cause memory difficulty, they come back on occasion. >> thats 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 its kind of an uneven p...

>> 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 victims property. >> this ski mask, red with dark trimming around the eyes, was similar to the one described by rosana shaw. at rons autopsy, the medical examiner confirmed that ron shaw was shot three times with a .38-...

Then we decided to look around the other bedrooms. thats 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...

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 thats 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 its 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 mo...