On the topic of Death's scans.

N1 - Deb, Tailor
N2 - MM, Cit

Assuming Death is town:

We know for a fact thanks to ikarus that MM was not targeted by a mafia coach driver on N2. This is possible to have happened on N1 with Deb but unlikely and basically just turns out the same way as an operator would.

In both cases there is a possible Operator, Bartender or Coward (I forgot this one but it's very unlikely Deb is a Coward and targeted their Tailor scum partner so in this case MM would be the Coward).

Tailor (Deb) + Any Role (Miz)
Tailor (Deb) + Coward (MM)
Tailor (Any Scum) + Operator/Coach Driver (Any Scum)
Any (Any Scum) + Bartender (Any Scum)

I think this is what it's narrowed down to in terms of scum roles in a town-Death world? So basically scum would need to have either a Bartender, a Tailor + Operator/Coach) combo or Deb to just be a Tailor (and MM a Coward if he's the partner).