I think 3 mafia being left is very unlikely. In a 13 person game, 4 maf+1 serial killer would not only give them an inordinate amount of voting power for anti-town, but would also mean mis-lynch day one+2 townie hits means town is split with anti town and has no way to win. In all likelihood we have 2 mafia left, and the sk. Since we have 10 people left we're at likely a 7-3 split right now(7-2-1 technically). A no lynch is not a terrible idea(would leave us with 5-2-1 if two townies get hit at night instead of 4-2-1 if we mislynch), but we definitely need to talk it through a bit more before we can decide that. I'd like to see some more conversation either way, as we might pick out a mafia, and if not it should give our cop(extremely unlikely we don't have one) a chance to decide who to investigate.
On another note, I still question Spam. He's been pushing his gut feeling very hard. This wouldn't be a bad strategy if he was mafia, knowing his gut had been right at times before, to use it as an easy-way-out excuse to get us to lynch a townie. Spam, I'm with Ronike here, do you have anything to back up wanting to lynch Jungle besides the gut feeling? From what I've seen he definitely seems like a townie, and I won't consider lynching him without some strong support. Right now the two people who I question are Spam(for reasons stated above obviously), and smashbot for, as a few have pointed out, being very quiet. Not always a sign of mafia, but definitely something that will cause me to keep an eye on what he's doing to come to a conclusion.