If you go from robbing a store with one or two clerks to robbing a bank, anyone might think they were moving up the ladder.

The M.O. was basically the same. They wore masks and had guns. They demanded cash. They usually were looking for the safes.

I don't know how people can balk at it. It's scientific. It's nothing people can say isn't true.

It speeds things along. Now you have old cases being worked on alongside current cases.

They didn't think DNA would be anything like it is today where you can test bodily fluids. They collected things, but it was more to determine the blood type of a suspect.

Sometimes with DNA, you're looking for a needle in a haystack. You're looking for things you may not even see.