Alright, so I had some thoughts on this matter. Firstly, there's two unanswered questions that are hanging over our heads that I think are very important to understand.
1. Is the extra killer mafia or town?
2. Is the "switcher" mafia or town?
So, let's go through the 'ol Timeaisis tries to list out the possibilities, starting with the extra killer being mafia.
Here's what we know
N1: Barry, [attempt on Duress?]
N2: Duress (required 2 hits, so we know the vig/hitman was active by this time), [attempt on Duress?]
N3: Foshy, Kalor (Kalor <-> Ward)
N3 - One Mafia hit and one Mafia hitman hit
a) Switcher is Mafia
Mafia and hitman target Foshy and Kalor, respectively. Mafia switcher switches Kalor for Ward to throw us off and create confusion.
b) Switcher is Town
Mafia goes for Foshy, hitman goes for Kalor. Kalor is protected by town switcher, likely someone who was against Lynching Kalor or Kalor himself is the Switcher.
N3 - One Mafia Hit and One Vigilante Hitt
a) Switcher is Mafia
Mafia targets Foshy, vigilante targets Kalor. Mafia Switcher protects Kalor from vigilante kill. This is interesting, because it would make sense for the Mafia to know the vigilante was likely to try to kill Kalor, seeing as Kalor had a lot of votes last night. This, of course, points to Kalor being mafia.
b) Switcher is Town
Mafia targets Foshy, vigilante targets Kalor. Switcher, who is on Kalor's side last night protects Kalor and switches him for Ward.
So what does this all mean? Well, it could mean a number of things, obviously. It all depends on if you think the second killer is mafia or town. I still think we have a vigilante, and not a mafia hitman. Why? Because they would have had to explicitly target Duress on day one or, they would've had to known by Day 2 Duress was a tough guy and double hit him.
I think the first is obviously more likely, but again, it would require the Mafia hitman to want to take out Duress Day 1, even though he wasn't being particularly active or troublesome, and then the hitman would have had to decide that he was worth trying to kill again on day 2, even though he survived the first time. This doesn't make a whole lot of sense to me. There were plenty of other high-profile Mafia targets on D2, and going for Duress again (without the guarantee that he'd even die, remember they don't know he's a tough guy yet) seems like a waste of a kill.
Therefore, it's my opinion that we have a vigilante. This aligns with my view of what a vigilante would want to do: progress the game and sniff out mafia.
D1: targets Duress for being inactive
D2: targets Duress again for thinking he has a special mafia role
D3: targets Kalor for suspecting he is mafia
Remember Kalor had the second most votes D3, and Duress was a prime suspect by Day 2. So it falls in line with the vig trying to kill a mafia. D1 Duress targeting was likely just killing off an inactive, which was recommended by me and many others on D1 anyway. So, it's likely the vigilante is "going with the flow" of the town's opinions and executing the second most popular opinion on any given day. This makes a lot of sense to me.
So where does that leave us, if the extra killer is a town vigilante? Well, here it is again. Again, it all depends on who the switcher is aligned with.
N3 - One Mafia Hit and One Vigilante Hitt
a) Switcher is Mafia
Mafia targets Foshy, vigilante targets Kalor. Mafia Switcher protects Kalor from vigilante kill. This is interesting, because it would make sense for the Mafia to know the vigilante was likely to try to kill Kalor, seeing as Kalor had a lot of votes last night. This, of course, points to Kalor being mafia.
b) Switcher is Town
Mafia targets Foshy, vigilante targets Kalor. Switcher, who is on Kalor's side last night protects Kalor and switches him for Ward.
So either the switcher is town and is trying to protect Kalor from the killer (because they were "pro-Kalor" yesterday) OR the switcher is Mafia and trying to protect Kalor from the vigilante. Protecting Kalor seems like a weird choice for a town player, unless they were really sure Kalor was going to get targeted, or really sure Kalor wasn't mafia. They were likely worried Kalor would be the hit of a vigilante, since he was a prime suspect last night. The second option, of course, is Kalor is the switcher. And thirdly, the most interesting of the all: Kalor is mafia and the mafia switcher protected him from a vigilante hit. And finally, just to enumerate all possibilities: Kalor is not mafia, and a mafia switcher protected him to create confusion
So we have, if my theory about a town vigilante is true, we've got four possibilities:
1. Kalor was protected by a town switcher who was worried about a vigilante hit
2. Kalor is the switcher and protected himself from a vigilante hit
3. Kalor if mafia and the mafia switcher protected him from a vigilante hit
4. Kalor is town and the mafia switcher protected him from a vigilante hit to create confusion
As weird as it sounds, I'm currently leaning towards P3.