Greg, Nick and others in “Who Are You?”

Greg

So, how many grains of sand in the ocean, huh?

Nick

I don't care about the ocean, just the sand in my skeleton. Can you pinpoint a beach?

Greg

I don't know. I might have to do some field research to find out. You think Grissom would let me go to Hawaii? (Nick sees Grissom in the doorway)

Nick

(to Greg) Why don't you ask him yourself?

Grissom

Ask me what?

Greg

Oh, nothing. I, uh ... I was just telling Nick about your sand. Well, it's not sand. It's not natural anyway. Here, check this out. (Grissom looks through the mircoscope at the sand) Now, if this were natural sand, the surface would be smooth. This looks more like Fremont Street on a Saturday night... rough.

Nick

Could the particles be sediment from the concrete where we found her?

Greg

No. No way. I analyzed the mineral content. It's feldspar and quartz. That's crushed gray sandstone. It's man-made, in a rock crusher.

Nick

What does that mean?

Grissom

It means she wasn't killed in Hawaii. (Greg freezes when he realized Grissom heard him before) Other than that, he has no idea. (Nick laughs)