This is rather intuitive, but I want a double check from a knowledgable sleuth:
I know the formulas involving witness evidence for finding the killer.
I know that I need WE + WE or WE + F/NA
Here are my questions:
Am I correct that there will always be 3 pieces of WE in AI cases, and that 2 of them will point to the killer? If so, then if I have WE pointing to 2 people, and one of them has a true alibi and the other is unknown, then the one with the unknown alibi is the killer?
ALSO: does WE ever point to someone who has NO PE against them? In my experience the WE always matches up with a piece of evidence, even if it points to a suspect with a true alibi, hence the possibility of false accusations.