CSI: 3 Dimensions of Murder Hints

How do I analyze the second set of items from Lucy's office?

  • 1 of 4: That key looks a lot like the other key you have in inventory, and that's not just sloppy graphics.
  • 2 of 4: Use the comparison microscope to compare this key with the one from Carrie's apartment.
  • 3 of 4: The needles have an obvious blood stain on them; spray them with LCV, then swab and compare.
  • 4 of 4: Finally, the box the needles were in has a fingerprint on the back. Use Ninhydrin to reveal it.