Who Dunnit ?
In room 4 we are solving a crime. and what we saw was a bloody cloth next to a broken window.
So first we looked at the cloth with the blood under the microscope and what we found out was the blood on the cloth was real!
using CCTV footage we knew we had four suspects.
When we discovered our blood under the microscope, we were able to extract enough to do a blood typing test. We found that the blood was A+
We also tested the victims blood to check that it wasn't their blood at the scene, but they were O-.
We then tested our suspects blood. 1 was AB+. 2 was B-, 3 was A+,4 was O+. From this we knew it had to be suspect A.
