I've been doing a little bit of rereading, going over the NKs. They all make perfect sense except N2.
Spyrex was suspected by a fair amount of people. He was explicitly in the miller room that night, so there was little chance of him having a power-role. His suspicions were all over the place, though mostly focused on hunting lurkers that were later revealed to be town, and he'd already been a scum-tool on two townie wagons. Spyrex was not targeted by two docs or the bus driver N2, so we can rule out items messing with the kill.
The scum must have selected him for the kill. Many of the obvious reasons are ruled out, above. It couldn't have been because he strongly suspected someone, for two reasons: his top three suspects at the time of his death were town, and he didn't have enough credibility to be seen as a threat. I can only see a handful of reasons why he would have been killed.
(1) Sour grapes. Shaft and strife are scum (or just strife). They tried hard to lynch Spy on D2 but nobody was biting and the day ended with a town willing to lynch any lurker over Spy. Scum may have seen this as an indication that Spy would never be lynched. Thing is, killing Spy was a serious disadvantage to the scum and I don't see the sour grapes theory as being enough of a trade-off, so I doubt this one is the case.
(2) WIFOM #1. The scum wanted to reveal Spy's alignment as town in order to discredit strife/shaft or give credibility to me. This suggests that I am scum, which sucks because I'm not. I doubt the motive was to frame me, since nobody has tried to use it for that. I doubt that discrediting shaft was the motive, since my false guilty was a perfect opportunity for a witch-hunt and none came. Framing strife only works as a motive if you believe I'm scum, because nobody else has pushed him extensively since then.
(3) WIFOM #2. At least one scum can be found in the following: Kmd, strife, and shaft. Spyrex had attacked these three extesively on D1 and/or D2 but had come around to at least leaning town on all three. He was killed as punctuation... get rid of him before he comes back to his senses.
In conclusion, this reread has me a little more open to the possibility of a Kmd-armlx scumteam. Enough that, combined with shaft's argument about wolf not seeing Darox's claim, I'm willing to drop Kmd out of the confirmed townie slot I had him in, even though I'm still leaning town on him. The dynamics of reason #2 above also make a strife-shaft team (ans therefore #1) seem less likely because, why would they swallow a serious disadvantage
and
discredit
themselves
?
Thoughts?