Got these from tvguide.com:
Burnout:Two boys are reported missing and a pedophile who lives in their neighborhood becomes the primary suspect after he is injured in a house fire, apparently set by a local seeking revenge for the boys' disappearance. The investigation reveals that one of the boys lives with a rough grandfather who doesn't seem too worried that his grandson is missing.
Post Mortem: After a woman dying of cancer is murdered in her home, the killer later returns to leave a miniature exact replica of the crime scene. It's similar to the one found at the murder scene of a slain rock star weeks before, indicating that a serial killer is at work. In court, Greg testifies at an inquest held to determine his culpability in the death of a teenager he accidentally killed.
Happenstance: Episode 7.08, "Happenstance," has the team investigate the murders of two identical twins who were separated when babies and never knew about the other. Both were murdered within two hours of one another.
These came from a asian website, I'm not sure if these are true.
Living Legend: (According to the site, here's a quote)
Catherine and Greg, are in the garage, wearing jumpsuits and goggles, are observing a large metal tarp bundled up with cables.
Greg: It looks like a giant diaper.
Catherine: You never had kids. Trust me.
Catherine steps forward and unthreads the cable through the tarps metal holes. The tarp's sides fall away and hundreds of lbs. of wet,stinking,toxic-laced mud oozes out across the floor. This reveals the vintage Cadillac of Mickey Dunn.
Catherine: Diapers are worse.
Greg: Score another point for birth control.
Locomotives: (Again, I'm warning it might not be correct) here's a quote by Grissom.
Grissom: You and I have a lot in common. I examine minute bits of things, looking for connections. I'm also trained in the study of insects. I've spent a lot of time alone, and I know the pleasures of small worlds.
(I was wondering if this has something to do with the Izzy case)