About that multiple scum reads: While you raise a point that it might be a strategy to lead investigations on lots of other people, as Rosen said having multiple scum reads is rather normal. Even in case you were right on your one scum read and them getting killed, you would have to start over at null again. There are often more than one scum.
In addition, I think to remember ondine mentioning those reads to be tentative?
Early on it's rather hard to get really solid reads. Those would have scum to make a major slip, which sadly isn't the common case.
So you go with what feels slightly off for whatever reason.
Guess I don't have much more to say here. So
[X] Null
ItzNarcotic answered on my question and I'm not really sure how to move on from there right now