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You have the crime scene. you process that crime scene. this is what we have done. what was concerning me initially was the students called over individuals other than law enforcement initially when they found these bodies. i believe that could have led to some contamination of the crime scene. james is absolutely right. i do believe this case certainly will be resolved. i believe the forensics are going to be the driving force. look, when you kill somebody or somebodies under these circumstances you leave a lot of trace evidence. this is not like perry mason or something is solved right away....

Enforcement was then contacted. as it pertains to the white pond day a launcher they are looking for, neil, my deepest concern here is turn vision. law enforcement officers have to continue to look at this objectively and not subje subjectively. and i believe this case is going to be far more driven by the forensic, by the trace evidence that they found in that home that they are now processing. neil: all right this hyundai a launcher why is this an has it become such an important issue to warrant that? >> i think during the course of the investigation, they have gotten video feeds where they ...

The parents, you can hear the grieving parents. they want to know more. in the public wants to know more. but the problem we have in you as a former prosecutor knows this they have got to protect the integrity of this investigation. not only do they have to find the murder or murders but they have to successfully prosecute those murder or murders. so i'm deeply concerned about how we try to rush this along and have the families and others tried to find out more. i have to believe that there is a lot of trace evidence that was left at this very blood he seen. i just believe we will get answers ...

Greater community." isn't your sense they are holding something back? that somebody is holding something back in this? >> yeah, listen. i understand the frustration. when you have to explain what's important is making sure we do it right by the book and that we don't put stuff out to the public that can affect witnesses down the road and defense can say witnesses are testifying about what they heard in the media. one note that's interesting is the knife. they are not identifying the suspect that they have identified a kind of knife that was used is very telling to me. a very specific piece of ...

Four? with a gun, you can understand it. with a knife, it's up close and personal. it's very bloody, very slippery. a lot of times the perpetrators wind up getting wounded themselves. it's a significant piece of evidence that there was bruising. as you would suspect, these people are going to be fighting back. they are going to be screening. there's going to be a lot of what we call transfer of trace evidence, whether that be hair or fibers, clawing under the fingernails. it would seems there's going to be a lot of dna looked into. the investigator said they're not focusing on the roommates wh...