Turns out I may have to amend that last post as well, since there may be a certain amount of obvious in roband's and Lataro's links.
I have gone through and made a history of the links between Lataro and roband throughout the thread, along with some scummy inclinations I noticed. I wrote about posts as I read them, so this is in post order.
Right out of the gate, Lataro votes to try to get someone lynched based purely on role. He says my role, which can only be used to kill one time, and then only if I'm dead, is too dangerous. Truth is, I always thought his role was the most dangerous.
roband's first post describes how each power could help or hurt town, but he does his best to minimize the dangers of Lataro's power, even though his is the only public power with the chance of getting multiple kills without him dying.
roband publicly encourages Lataro to use his power every night.
roband tries to point the doctor at GoP, which would help make sure their kill went through if mpolo did this. Obviously, he didn't think this one through, but he didn't need to. Directing the doc at someone helps mafia.
roband wrote:I don't like any role which can weaken town. VF's is the worst, Lorenz is a close second, followed by me and you (meaning BF), I guess.
Notice he didn't mention Lataro at all. Does any one else think the poisoner should have been mentioned on the list of dangerous roles? And why is Lorenz's role so dangerous, all he does is make people vanilla. If he uses it on people who can kill town, he's helpful. If he uses it on doc, watcher, or tracker, then we lynch him. How is that dangerous?
Lorenz finally called him on this and he tries to minimize the danger of Lataro's role by saying it wasn't instant (though of course, it's more instant than a power that can't be used until you get killed, but he doesn't mention this). Also, for reasons not mentioned in the post, roband got a "townie vibe" from Lataro.
mpolo jokingly accused roband of being WW, to which roband reacted somewhat mildly, saying that he's happy to be investigated but it would be a waste of time. Lataro followed with:
Lataro wrote:A waste of time because you are the WW and plan to kill him? I think I found another slip!

When I read this through the first time, I thought Lataro was doing some honest scum hunting here. In fact, Lataro's comment was the first comment that made me actually suspect that roband was the WW. But I missed the smilie. Turns out, if I had read it correctly I would have seen that he was actually trying to diffuse the suspicion of roband but making it a joke. roband being scum was a funny thought and shouldn't be taken seriously.
Next up was the first roband/BF scuffle where BF voted roband because it seemed like roband was just looking for ways to paint other people as scummy. This is where roband's "suspicion" of BF began and it is basically OMGUS.
Of the fight, Lataro says that he's feeling good about BF, but roband is trickier. He says that roband is more likely WW than mafia because he hasn't linked to anyone
(except that roband had already defended Lataro as townie at this point). This is a safe bit of distancing because he's trying to get people to not think of roband as mafia and Lataro still had not given up on a Narissa lynch, not to mention the cloud of suspicion that was forming around slbub.
GoP started to post a review of the players and began with Lataro. He calls Lataro "pretty townie" and "unlikely to be scum, but a possible WW". He seems to be following Lataro's lead here, in that GoP says that a scum mate (this time Lataro) is not likely mafia but possibly a WW. Again, accusing people of WW is safe distancing. There's less evidence for WW than for mafia.
roband acted confused when I said he had linked with Lataro, meaning he definitely did not want to be seen as linked to Lataro, even though he had called Lataro townie.
roband's reaction to my going back and forth on whether roband was WW caused BF to vote for him and weiyaoli jumped in a little as well. roband became defensive and the dust up didn't settle until Lataro jumped to his defense, calling roband a puppy that likes to chase cars. Since it seems that a number of people are suspicious of roband at this point, Lataro decides that BF, who he had been feeling good about, must be scummy and goes on the attack against him. Not only that, weiyaoli, who had jumped into the fray, was also likely to be scum, according to Lataro. See the pattern? roband can do anything and he's not scummy because he's a puppy, but anyone that attacks roband (BF and weiyaoli) are scummy.
BF starts to back down because Lataro intimidated him. Then BF commits the cardinal sin of suggesting that Lataro might not be townie, which is what drew Lataro's wrath (and vote) and his wrath toward BF has not cooled since.
BF poses a good question to Lataro, asking why Lataro thought Lorenz was the most townie person but Lataro didn't find roband suspicious for voting for him. Lataro's reason was basically that BF's suspicion of Lataro makes BF more scummy than roband, so roband cannot be scum.
By this point, votes had started to pile up on mieulium, which was roband's cue to defend someone who he knew was not mafia. Solid scum strategy.
After N1, Lataro is quick to point out that roband couldn't be mafia because mafia wouldn't have RBed the bus driver with the number one WW target as their teammate, so he began building the alibi early. I'm not sure if they had planned it this way, or if that was an unintended consequence of roband deciding to RB BF because it goes along with him being suspicious of BF.
roband, shortly thereafter, goes out of his way to say that both he and Lataro are less likely to be scum. I am now convinced that they had dumped the mafia kill off on GoP, thinking that he would be killed so it wouldn't hurt them if he was tracked, and roband and Lataro would both be able to establish an alibi.
roband then tries to paint BF as the WW, even though he unwittingly confirmed through his RB that BF was not WW.
I then voted Lataro based on the fact that BF could not be WW and because BF had made statements that lead me to believe BF could not be mafia. This (suspecting or voting for Lataro), of course, is the cardinal sin that one must never commit, so Lataro has now locked his vote in on me.
The rest is recent history with hilights being roband saying that he thought that Ibarra and BF were teammates (nice!), roband saying that I was mafia and that BF and mpolo were my teammates (making a total of 4 mafia!), and roband asking for Lorenz to take his power away. Lataro's recent hilights are basically just placing the first two people to vote for him (BF and the me) together on a team and insisting that we're mafia.
roband has always called Lataro townie. Even when he suggested that it was possible that Lataro could be scum, he always followed it up with the fact that he thinks Lataro is leaning townie.
Lataro did some distancing from roband at the beginning when his main focus was elsewhere, but when it started to matter, he strongly defended roband and has ever since.
Sorry for the text wall.