Scott Eicher

Well, you got to remember they identified Kohlberger through other ways first, and then they got his phone records and may be able to kind of look at all that pattern analysis.

It wasn't the cellular stuff that

brought them to Kohlberger initially.

They found him through the DNA on the knife sheath.

But once you get that data, you can get all that pattern of life based on that phone records and the person.

Now, if you don't have the person identified, it's a lot harder to look at the thousands of phones in there and try to figure out which ones are relevant to the case in the tower.

Which ones are relevant?

Well, I understand that you might not understand that the cell phone towers, they might be five, four, 10 miles away from Nancy Guthrie's house and cover a huge amount of area.

So that neighborhood might not have a lot of activity, but you expand out to the coverage area of all the towers that might give some signal to the area of Nancy Guthrie's house.

You might look at 10 different towers, all covering two or three miles of area itself.

When you put all that together, you have hundreds of phones and devices, cell phones, cars,

Anything that has a cellular connection, that's a lot of data still to go through, even though it's a sparser area than maybe a downtown area like Denver.

But you still have a lot of phones in that area and devices.

Well, there's many reasons a phone could move in and out of that area or be turned off or turned on.

So it's a lot of analytical work to try to figure out which phones are relevant to the case and which ones are not.

Sometimes we can get more specific data on the towers and distance from the towers the phones are, and that does help us kind of indicate, all right, this phone is traveling down this road.

But 90% of the time what you can get from the phone records themselves are towers that were used, the sector or side of the tower that was used, and maybe a possible distance from the tower that phone is.

So it's not as precise as we want to think it like it is in, you know, the movies or on CSI on TV.

It takes a lot of work.

Put him up.