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Investigators -- Newtown Connecticut are poring over evidence sent to crime scenes in a search for answers in the deadly shooting at sandy hook elementary.
So exactly what are they looking for and how Long Will this investigation take.
Bill Daley is a former FBI investigator and senior vice president in practice leader for control risks security consulting.
Yesterday we heard from lieutenant Paul -- he's -- Connecticut state policeman who has been sort of the face of this of this investigation said.
We're gonna get to the hard drive we're gonna get all that evidence off his computer and we're gonna find out.
What was behind this Rampage.
Today we're finding out that the computer hard drive has been smashed apparently beaten by the gunman before he left so does that mean it's going to be not.
Possible to get the information.
That's and that's that's -- so John I mean the the area computer forensics an examination of damaged hard drives his term really turned into science and it.
It is a key tool.
In the toolbox for investigators these days with all things that we touch criminals touch.
Knowing what happens and instead of computers are very important so.
What they can't use it may be able to recreate part of that even if it is physically damaged there ways to recreate part of the drives I've worked on cases where.
-- computers have been involved in fires and you can retrieve some of the information be very helpful so.
It doesn't mean that they can do with their other things take a look at take a look at peripheral devices in buffers and memories you look at search engines.
A variety of things that -- -- -- with this person this gunman in focus so maybe your printer or maybe your web searches they can go to Google or one of these other.
You know search engines -- and find out what he was up to.
Exactly they can go out to that any the online mail services.
You see this type of activities so it's it's for investigators there really is kind of a potential treasure trove potential say.
For things that may put this person this gunman in focus.
It's not to say that he will at the end of the day provide the crystal clear for you know images of what he was up to a may be in what led to.
The tragedy last week but will certainly provide some background and some evidence I believe.
Towards what he was doing on an everyday basis but but some people might want to ask.
Why bother you know that the gunman.
Did this probably had some mental issues he's dead.
What can you learn from putting together all the steps he took going up to that moment.
Well -- a couple things one it is that from an investigative standpoint it would make sure that we know the people who were.
Aware of what he was doing what he was communicated plans to -- communicate to anyone -- also on the forensic side -- looking and as the lieutenant mentioned.
On the firearms onto and make sure that when he went to -- range allegedly did do some shooting.
Was he there properly with -- properly licensed or other things that people may view somewhere along the line.
May have some legal exposure because of things that they should or should not have done.
However from from that standpoint.
Understanding what he's doing and and the -- -- focus as we would say is understand how we might be able to predict these things in the future.
Yes we can't go back and change the tragedy of last week we all wish we could.
We may -- -- the -- prevent those things in the future by understanding what led this person what was his background.
What was -- mental condition was as physical condition was -- medication -- -- communicating with what things are you looking at.
Maybe help provide a profile it would help in future cases.
Bill -- now with control risks security bill thank you --
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