Greg Sanders : [Grissom and Catherine walk into Greg's lab to see him rocking out to blaring rock and roll music] I could have been a rock star.
Gil Grissom : There's still time, Greg. Tell us about the foreign substance we found in the vic's wound track.
Greg Sanders : Uh, well, I like to rub it all over a lady's body. Even better... I, uh... like it when she rubs it all over me. And it's also used as a stool softner.
Catherine Willows : It's also the only open lead in our case. Spit it out, Greg.
Greg Sanders : Mineral oil.
Gil Grissom : Possibly used as a preservative to prevent rusting of high-carbon steel.
Catherine Willows : Like the blades of knives.
Greg Sanders : Old knives. New ones are made from stainless steel. Yeah, I'm like a sponge. I just absorb information.
Gil Grissom : I thought that was my line.
Greg Sanders : Yeah, and I absorbed it.
Catherine Willows : Okay, so... knives, screwdrivers, ice pick, letter opener. We're looking for a weapon with a splash of mineral oil. I'll grab the ALS.
Greg Sanders : An ALS. For mineral oil?
Gil Grissom : Mineral oil fluoresces at 525 nanometers when filtered through a kv590. A little more absorbing... a little less rock and roll.
Gil Grissom : [to Catherine after witnessing a child ignoring her mother] My mother may have been deaf, but she was still the boss.
Gil Grissom : This woman was stabbed. I guess the cats are off the hook.