Death is coming to the CSI season finale.

The first part of this episode airs tomorrow night, but a TV Guide reader can't even wait until then to ask the question on many of our minds:

How many of the CSIs will be actually be in danger?

According to Carol Mendelsohn, one of them will be gunned down by Dr. Jekyll about halfway through the finale. But there's also a "super-secret twist," TV Guide reveals:

"One or more of our CSIs will fall victim to one or more of our serial killers," she says.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.