in the forensics lab, scientists found two linear impressions on the pillowcase that were consistenth the blade of a knife. the serrated edges appeared to be those of a hunting knife. also on the pillowcase, they found what appeared to be a partial fingerprint in dawn's blood. but the fabric was textured, which made any kind of fingerprint analysis impossible. >> the print was almost invisible. even to a trained eye, the ridge detail was very faint. and we had to really study it because as we studied it under magnification, you enlarged the fabric weave which had a tendency to totally eradicate the ridge detail. at that point in time, i did not have a whole lot of hope for that fingerprint. >> there was ridge detail. in my opinion, at that time, i didn't think it was very much. i knew it was all we would have ever, and if it could not be enhanced in any way, we wouldn't have much of a case unless we got a lot more evidence coming in that we didn't think we would get. >> traces of semen also were found at the scene. serology tests indicated that the killer had type "a" blood. this eli

this time the procedure was videotaped by police and performed at their forensics lab. doctor appears friendly and helpful. the technician wants to take blood from his finger, but the doctor politely refuses, saying he has a disease that would cause his hands to bruise. >> that's how we usually take the sample. we don't need much blood. >> since this is a voluntary test, the doctor can't be forced to do anything against his will, so the technician inserts a needle into his left arm instead. nothing comes out. >> the vein was larger -- or appeared much larger than i would have expected. and i thought that was a little unusual. >> she tries another tube but still has trouble. >> sometimes the vacuum is poor and would not pull the blood out of the individual's arm. >> eventually she was able to extract a sample. afterwards, the nurse was puzzled. >> it was a little strange in that the blood doesn't look -- really, kind of fresh. i don't know. >> and the lab determined that the sample was too degraded for dna testing. the police broke the news to candy. >> i am like, oh, my

. >> in the forensics lab, margie coffey's clothing would soon tell a story of its own. >> i had thed leg warmers. you had a heavy coat. once the clothing is dry, basically it'll be hung on a hanger just like your clothing would be at home. there'll be a piece of paper placed underneath in case anything naturally falls off. >> while most of the trace evidence had been washed away by the water, a very small amount remained. >> recovered a number of hairs and fibers. in particular, two fibers red in color. the presence of these two fibers, about a quarter of an inch in length and no more twice the size of a human hair across, were all that we had to work with. >> while different fibers might look similar to the naked eye, under a microscope they are very distinctive. the foreign fibers on margie's coat and leg warmers were triangular in shape or trilobal. trilobal carpet is usually found in high-traffic areas like hotels and automobile interiors since it hides dirt. tony tambasco took carpet samples from every location margie had been in the days before her murder. tambasco thought he

forensics lab, it aims to verify information shared online. and a social media strategist, she is also heavily involved in online activism, and has been behind several viral campaigns sometimes we associate the viz didn't the excitement of an online campaign with it's effectiveness, how do you know it works. >> that's a great question, and you brought it to the point that people have very very high expectations. but expectations are not equal impact. on another level, i think people equal metric like a lot of members eethink social media is not very new in that regard. i think it sometimes have expectations that we can fix overnight, be uh that's unfortunately not the case. >> do you think that the social media campaign can get so big, that it actually overshadows the issue itself. >> call me an optimist, but i have a lot of hope when it comes to sort of the power of social media. for galvanizing companying bring back our girls is a great example. of course, we need to mention that boko haram is still going out and doing harm in the word, and

check smart phones either belonging to the crooks or the victims the city opened a new digital forensics lab what happens what a person is doing, an innocuous daily task or engaging in something they shouldn't be doing, there's going to be a phone present. >> news 4 i-team cameras are the only ones allowed inside the lab. they place seized phones in a secure box to avoid remote crooks from wiping them clean and checking text messages and the locations and times they were sent. even cracking pass codes. >> it may stop us for a while but we'll figure out a way. >> reporter: the city hired a team to work here and they'll soon hire more. they're not the only ones increasingly returning to cell phones. according to reports there have been at least 245 forensics reviews of portable electronic devices by virginia state police in the past two years. 188 by maryland state police. inside the maryland state police lab which is secured by special code and card access, smart phones and tablets are a priority. >> technology is always changing. >> but for a specific type of crime, crimes against children,

including from a former secret service agent who at the time was head of the agency's digital forensic labhe cell phones from chris kyle and chad littlefield and eddie ray routh and discovered a voice mail from routh to chris kyle taken three days before the two -- three were to meet that day on the shooting range. now we're not allowed to play the audio that's a court rule but the jury did hear for first time eddie ray routh's voice and said he was looking foward to meeting chris kyle on that fateful saturday. the jury also saw the text messages between chris kyle and his friend chad littlefield, sitting in the front seat kyle right to his friend this guy is straight up nuts and littlefield replied, he's sitting right behind me. watch my 6. the jury is expected to hear more testimony throughout the week including from the leads investigator who interviewed routh after the shootings and we'll probably hear from the audio recordings from that interview in court later this week. andrea, back to you. >> thanks so much charles in texas. this trial which is really galvanizing the country. up ne

. >> you get a profile identical of the profiles generated in typical forensic labs in a few hours. >orter: the rapid test could keep an innocent person from getting thrown in jail or allow the cops to keep a bad guy in custody because he matches other crimes. >> but having somebody known as a known previous offender while they're still in custody should save a lot of time on investigations, follow-up and possibly prevent other crimes. >> reporter: alameda county district attorney nancy o'malley has been working with police agencies across the country to relieve a huge backlog of sexual assault cases. >> it's estimated there are somewhere between 400,000 and 500,000 kits sitting in police evidence rooms that have never been analyzed. >> i don't want him to touch me. >> let's not talk about that. >> reporter: rape kits are more sophisticated so those tests will still have to be conducted at a crime lab but the d.a. says cops will now be able to use rapidhit to do other kinds of tests more quickly to free up the state lab to focus on the rape cases. >> we have to move faster so that we

did the irs ever collect any tapes or send any backup tapes to any forensic lab in your investigation, the people that you detailed to do this? was that -- were any tapes recovered, any tapes ever sent to a lab by the irs? >> no. >> okay. now, who told you that the backup tapes would not yield any e-mails from lois lerner's crashed har drive? >> i was told that by our technology department. >> do you know the basis for that statement? did you inquire as to how they could be sure of that? >> basically what they described to me is they had these disaster recovery tapes they're actual tapes. they keep them for six months, and when the six months is done, they simply reuse them and record over them. if you ever had tapes when you record over them in the normal process the data underneath them is gone. in fact, i was told that we had no capacity and no way you could actually recover those. in fact, they were not sure there was any way to recover them. >> has the irs communicated with lois lerner her attorneys about recovering the e-mails from any of her crashed hard drives? >> i've had no

. >> did the irs collect any tapes or send backup tapes to forensic labs in your investigation, the people you detailed to do there is? were any tapes recovered, any tapes ever standpoint the lab by the irs. >> no. >> who told you that the backup tapes would not yield any e-mails from lois learner's crashed hard drive. >> if was told that by our information technology department. >> what was -- do you know the basis for that statement? did you inquire how they could be sure of that? >> basically what they described to me was they have these disaster recovery tapes. they're actual tapes. and then when the six months -- they keep them for six months and when the six months is done they roo use them and record over them and if you ever had tapes, when you record over them then in the normal process the data underneath is gone, and in fact i was told we had no capacity and no way to actually recover those, and in fact they were not sure there was any way you could recover them. >> has the irs communicated with lois lerner, her attorneys, about recovering the e-mails from any of her crashed har

the hiring of michael wolf saying he has extensive experience managing turn-arounds in state forensic drug labslaware medical examiner's office was at the center of a scandal last year involving evidence tampering and theft at the state drug testing lab. >>> some community members are upset about a plan to close a psychiatric care center for kids in newark. the will close rosenblum child and adolescent center on february 20th. it offered psychiatric care for kids between 12 and 18. christiana care will also close outpatient psychiatric services. some say it saved their lives. the hospital says it will imbed therapists into primary care practices. >>> a hearing now in camden could determine if the sale of the former revel casino could go through. a federal judge listening to emergency motions from revel's utility supplier and former business tenants. they want their claims resolved before florida developer glenn straub takes possession of the building and is free to kick them out. the sale was to happen today but he agreed to extend the deadline for purchase. >>> they made this their mission to

." >> sheriff metz immediately sent the letter to the south carolina law enforcement crime lab, hoping forensicocument examiner mickey dawson could find some clues. >> i was looking for handprinting or handwriting. i was looking to see if i could find any trace evidence in the hairs and fibers. >> after the letter arrived, the abductor called the smith family again. >> have you received the mail today? >> yes, i have. >> do you believe me now? >> well, i'm not really sure i believe you because i haven't had any word from shari. and i need to know that shari is well. >> you will know in two or three days. >> why two or three days? >> call the search off. >> later that same evening, he called once more, saying that shari was alive and implied he would release her soon. >> i want to tell you one other thing. shari is now part of me. physically, mentally, emotionally, spiritually, our souls are one now. >> the call was traced to a public pay phone at a drugstore in downtown lexington. but in 1985, trap and trace required 15 minutes for authorities to trace the call and reach its location. the abduc

. >>> a team of forensic scientists at the western virginia crime lab analyzed the items recovered from their prime suspect's home. using a process known as the charcoal tube method, arson investigator tom simpson placed samples of earl bramblett's stained blue jeans in a can and then heated it. the vapors were trapped in a tube filled with charcoal, then fed into a gas chromatograph mass spectrometer, a device that can analyze the precise chemical composition of a stain. even though bramblett's jeans had been submerged in water, simpson discovered the stains were diesel fuel, the same accelerant used to start the hodges' fire. the blacked-out entry on bramblett's timecard presented another challenge. forensic documents examiner gordon menses used a video spectral comparator with various light sources in an attempt to see underneath the black ink. slowly, the information came into view. >> i was able to come up with an original entry that was 5:08 m, which would have been 5:00 in the morning on monday, according to what i understand about the time clock. >> 5:08 in the morning was only

actually not anything that eddie ray routh owned, that it was put in place there at the crime lab when the forensichemists were doing their testings, those vials were put in by the lab technician and brought in and shown to the jury. this really set off the defense team. they asked for a mistrial, they asked for the texas ranger to be charged with perjury. the judge in the case denied both of those motions. but the prosecution basically had to turn around to this jury today and explain that those vials should not have been there, were not part of any of the possessions or items that belonged to eddie ray routh. and more importantly, they also had to tell the jury with these various witnesses today that there was no methamphetamines found inside the home of eddie ray routh. be interesting to see how this plays out with this jury since they've heard so much over the last five days, how much this recreational drug use was a contributing factor to eddie ray routh's behavior. >> right. and whether or not that temporarily made him out of his mind and frankly that doesn't meet the texas bar for insanity.

forensics. i visited a lab where they do fingerprints, take a look at rifle rounds. they have gotten quite good at their technology on forensics. >> thank you. >> thank you, mr. chair. general, thank you so much for joining us here today. i know i do not need to say anything to boost your self-esteem but i do want you to know how widely respected you are amongst the men and women that have served under your leadership. we greatly appreciate that and thank you very much for your service. all of us on the panel appreciate you being here. you are in a very difficult position at a very tentative time as we move forward in this transition. one thing that has been of great concern to me is ensuring that as our united states armed services are moving or transitioning out of the more leadership type positions that we do have the afghan capability to back it up. logistics is always a great concern of mine. i did ask the panel yesterday some thoughts on what just ask -- on logistics and a great comment that came from admiral olson is that is -- do they have those capabilities w

police inside of the city but some of the specialties in the forensics that visit -- forensics, i visited one of their labs where they do fingerprints, where they do explosives, where they take a look at rifle rounds that have gone off, to bring that together. they've gotten quite good at their technology on the forensics and we'll continue to work with them. >> thank you. thank you very much. >> thank you for being here today. i know i don't need to say anything to boost your self-esteem or ego but i want you to know how widely respected you are amongst the men and women that have served under your leadership. we greatly appreciate that and thank you very much for your service to our nation. alls us here on the panel appreciate you being here and you are have a very difficult position at a very tentative time, as we move forward in this transition. >> one of the things that's been a great concern to me is ensuringing that while our united states services are moving or transitioning, i don't want to say withdrawing, but as they are transition out of the more leadership-type positions, that we do have the a

not only the afghan police inside of the city, but some of the specialties in the forensics, i visited one of their labswhere they do fingerprints, where they do explosives, where they take a look at rifle rounds that have gone off, to bring that together. they've gotten quite good at their technology on the forensics and we'll continue to work with them. >> thank you. thank you very much. >> thank you for being here >> thank you, mr. chair. general, thank you so much for joining us here today. i know i do not need to say anything to boost your self-esteem but i do want you to know how widely respected you are amongst the men and women that have served under your leadership. we greatly appreciate that and thank you very much for your service. all of us on the panel appreciate you being here. you are in a very difficult position at a very tentative time as we move forward in this transition. one thing that has been of great concern to me is ensuring that as our united states armed services are moving or transitioning out of the more leadership type positions that we do have the afghan capability to back

swapped leann's hands and sent it to a lab to determine whether or not there was any gun powder residue that may have been left. that came back negative. >> forensic spatter expert dave woodford examined the shirt mick fletcher wore the day of the shooting. a chemical test found blood on the right cuff. using a stereomicroscope, woodford saw high velocity impact blood spatter on the right cuff. a fine mist of tiny blood particles had been driven deep into the fibers. >> to me, it was critical because there was no way that he could have been in the bathroom at the time of the shooting. >> high velocity impact blood spatter is created when a gunshot wound hits an area with blood and a fine mist of blood blows back toward the gun. >> he had to be in close proximity to leann when she was shot. >> had leann shot herself, investigators say, there would have been high velocity impact blood spatter on her hand and there was none. >> it doesn't make any difference if there are additional drops of blood that occur later or contaminate on top of it with some smudging occurs. there would still be areas that allow for this pattern to be recognized and that was

lab. at 17 al shamir has a plan. >> go to college and study forensic science. >> what made you decide forensic science?st like the fact that forensic science is solving crimes and helping people out. >> shamir is a great teenager very shy at first, really sort of introverted but also really friendly. >> he was excited to actually learn some of the scientific things he hopes to do some day. >> you're going to leave a fingerprint right in te of that glass. >> he wants and needs an adoptive family that would love him and support his aspirations. >> how long have you been in the foster care system? >> since i was eight. >> i think he could benefit from a family that is committed to him, that's encouraging. >> he wants to be a success in life. >> success for me would be achieving all my goals and accomplishing everything i want to accomplish in life. >> with that attitude and his wonderful smile, he's sure to make a family proud of him. barbara harrison news 4 for wednesday's child. >> if you have room in your home and you heart for al shamir or another child who is waiting, call our special adoption hotlin

lab. at 17 he has a plan. >> i'm going to college to study forensic science. >> what made you >> i just like the fact that forensic science is solving crimes and helping people. >> he's a greet teenager. he is very shy at first, really sort of introverted, but he's really friendly. >> reporter: he was excited to learn the scientific things he's going to do some day. >> you're going to leave a fingerprint in the middle of the glass. >> reporter: he's a bright young man who wants and needs an adoptive family that would love him and support his aspirations. >> how long have you been in the foster care system? >> since i was could really benefit from a family that is committed to him that's encouraging. >> reporter: he wants to be a success in life. >> success for me would be ac goals and accomplishing everything i want to accomplish. >> reporter: with that attitude and his wonderful smile, he's sure to make a family proud of him. barbara harrison news 4 for wednesday's child. >> if you have room in your home and your heart for a child waiting, call our special adoption hot line at 1-88-to-adopt-me or search wednesday

forensic scientists found traces of mercury and arsenic. the arsenic was a special formulation which won't be identified here except to say it was odorless and tasteless. detective bailey confronted white with the lab results. >> and he had told me, that was crazy, absurd, and ridiculous. he said, there's no way there's arsenic in that. bring it to me and i'll drink every bit of it. a few minutes later, he said if i was going to kill this guy, i wouldn't use arsenic, i would do it with something much quicker and legal. >> everything in his statement that he gave to the police, a 21-page rambling statement, was false. and i'm not even sure if steve white is his real name. >> a search of the car restoration office produced an envelope hidden behind the electrical panel. analysis of the materials inside revealed arsenic, antimony, mercury, and lead, each a highly toxic metal. a forensic document examiner compared the handwriting on the envelope to known samples of steve white's and concluded they were both similar. steve white was arrested and charged with the attempted murder of phil rouss. but important questions remained. how did the poisons get into phil rouss' body? al decongestant. is that reall

forensic science center. the delaware medical examiner's office was the center of a scandal last year involving evidence tampering and theft at the state drug testing lab. >>> looking at a slippery start for much of the area even though in most areas the freezing rain sleet and snow has ended. the ice is still on the ground. we will see melting conditions this afternoon. a little bit of sunshine and temperatures climbing to near 40, but then it turns much colder as we head toward the weekend. and we will see enforcing cold air arriving for the weekend. right now 26 degrees in reading. 28 in philadelphia. trenton also at 26 degrees. each of these locations is cloudy but still tracking a few showers to the south in delaware and south jersey. right now it's just clouds over center city. we'll see those clouds thin out and get some sunshine this afternoon. right now it's dry in the city. but just to the south some light snow is starting to thin out into central new castle county in delaware right now. and it's a mix of sleet and freezing rain. a few snowflakes into salem county. dover started off with some light freezing drizzle but it's thinning out in no

forensic scientists. we have to process the scene. go around the scene again in a spiral pattern. we've identified all the physical evidence. we need to now package it, document it. and get it to the lab is a linkage between the suspect, and the victim, or between the suspect and the crime scene. the best ways of course are fingerprints and dna analysis. >> but nowadays, crime scene analysts have to rely on something else. >> how does that occur? >> today, things we do weren't even thought about years ago. we can bring instrumentation into the crime scene and not only collect evidence but start to analyze it. camera. >> what happened at the crime scene? okay. you can see the body. on the bed. you can see there's a monkey wrench on that edge of the bed. >> it gives investigators and injuries another perspective. and allows -- and juryies to reenter the crime scene long after it's been cleared. >> laeah is going to fire at the piece of glass and going to assess the dynamics of the bullet with the glass. 10 ,000 -- >> light, clear. >> wow, what type of information are we going to be getting from that? >> he's going to see the bullet approach the glass in air where it's in stable flight.

lab. >> this is a crime scene investigation kit. >> reporter: at 17 he has a plan. >> i'm going to college to study forensic science. >> wow. >> reporter: what made you decide forensic science? >> i just like the fact that forensic science is solving crimes and helping people out. >> he's a great teenager. he is very shy at first really sort of introverted but also really friendly. >> reporter: he was excited to actually learn some of the scientific things he hopes to do some day. >> leave a fingerprint right in the middle of that glass. >> reporter: she showe to dust with metal filings for fingerprints and extract lots of clues from footprints left at a crime scene wharnlgts information do you think you can get from the shoe print? >> wearing an 8 1/2. >> for sure. >> reporter: he's a bright, young man who wants and needs an adoptive family that would love him and support his aspirations. how long have you been in the foster care sy? >> oh since i was 8. >> i think he could really benefit from a family that is committed to him, that's encouraging. >> reporter: he wants to be a success in life. >> success for me would be achieving all