Okay, so Dan has confirmed that there are two scum groups. That's news to me since I don't know the theme and I was guessing that the extra kill on Night 1 was more likely a JOAT kill then non-town.
Impulse could have been silenced, esp. since it appears there are two scum groups, or he might be scum avoiding the thread. I don't think I've seen him avoid claiming as scum before. I'd give him a chance to claim before hammering. He has posted a lot of crap but that isn't necessarily a scum tell for him.