The episode follows two distinct investigations that test the team's forensic skills and personal biases:
An X-ray of one victim reveals the tip of a knife embedded in her ribs. A knife expert identifies it as part of a five-inch, double-edged carbon steel dagger. CSI Las Vegas 1x18
Investigators initially suspect two different weapons, but later confirm the assailant used the same dagger. The tip broke off during the stabbing of the second victim (Jessica), and the killer then returned to finish off the first victim (Kevin) with the broken blade. The episode follows two distinct investigations that test
