That character is a SPOILER! Just another biased ignorant critic. I enjoyed the surprise of a returning Tracee Ross, and for the show's sake, upping the stakes for the CSI team particularly Dr. Langston as he deals with the pain and prospect of possibly encountering his ex-wife on the worst day of her life--to coin a phrase, from Grissom. It's one thing to be empathic with a stranger's unfortunate or gruesome demise, but for the intrusion of pain from that death of a loved one, sears the images indelibly into one's psyche and ultimately test's the team's mettle when they deal with a colleague's pain. In the end, this suspenseful, precarious, predicament is forging their character in the crucible that is the pursuit of a devolving maniac, issuing crime scene after crime scene for further agonizing processing--if not for the team directly, certainly for the one who is imagining the worse for a loved one. These people are producing the best show on television, completely diverting me from some of my other favorites to ponder what will be next! People love this show and Dr. Langston has done his part! He's great!!! If you don't like it, DON'T WATCH IT! Don't mess with Morpheus!!!!
Review of Cello and Goodbye
