Page 25 - Forensics Lab News Today

Stepped on a shard of glass, 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 an impression on. >> the linoleum floor was dusted with a powder called aurora pink ...

Longer there. 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. >> an...

Then the fluorescent powder that you use to dust up the impression is very bright and so it makes a very good contrast. >> it was successful. tey saw one clear print, the heel portion of the killers left shoe. it appeared to be an athletic shoe. >> most of the prints you see are partial prints. you may sometimes get some full footwear impressions, but with people walking over on top of them, it can destroy the prints and many times you only get partial prints. >> back in the forensics lab, scien...

He was 25-year-old kent embry, who had prior arrests for petit 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 ...

A store employee, 40-year-old cathy woodhaus. she was a married mother of three children. >> she was my mom, and she disciplined me and all those things, but she was also my friend. sorry. im sorry, guys. >> outside the store, police found a piece of pantyhose, which the killer may have used as a disguise. investigators wondered whether the man who made the 911 call was somehow involved. >> we listened to this 911 call. could he be a witness or was he the actually assailant of cathy woodhouse? a...

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, confiscated gortons cup and took it to the forensics lab. the sample was tested immediate...

>> in the yard, investigators found the projectile that passed through shaws body. this along with the two inside shaws body were sent to the forensics lab. under a microscope, firearms expert chris henderson discovered that the lands and grooves on two bullets were the same. the third bullet was different. >> we determined that we had two different shooters based on the class characteristics of the bullets. >> in their search for potential suspects, police had to consider whether rosana shaw ha...

To see if its possible it could be the second bomb. in the first picture they say you can see a bag up to a mailbox, up against the barricade along the marathon route. in the second, which they blurred because its very, very graphic, there is no sign of the bag. that from our affiliate whdh, the fbi now investigating these photos to see if in fact that is the bag that contained the bomb with the pressure cooker device. fran, let me bring you back in. assess what whdh is now showing is this. >> w...

Street, they are readily available. i would rather go for the jewelry. to get rid of and i would rather go into a home where there isnt a gun because i dont want to run the risk of running into the homeowner. >> every home i have broken into, live on tv, there are always guns, we do take jewelry, we take laptops, that facilitates, financial theft. we take prescription drugs, anything of value thats laying around. guns are a mairnt priority because they are easy to turn. you can take an $800 hand...

>> reporter: not really. what people are asking for is the process. they feel the process was circumvented from the very beginning because this was a seven-hour and 50-minute investigation from the time of a shooting to the time of a decision that he would not be charged with a crime. ive spoken with veteran detectives in florida who have handled cases like this. and theyre dumbfounded to think this would happen so quickly, if for no other reason than for the forensics. trayvons -- the clothes t...