Temple Ruins Near Luskan
Ok, for the sake of brevity, Saran has encountered some zombified peasants on the road. One one of them, a woman, Saran found several artistic or runic cuts, all over her body. He later found her house and it was evidenced that her and another person (probably the other zombie Saran encountered) were killed in bed, then the woman was moved to a table, washed, and mutilated.
Fergan heard about zombies, found a guy that was harassing/beating prostitutes and trailed him to an inn, staking it out. In the morning, several zombies burst out and started rampaging the streets (but were destroyed by Fergan and other adventurers). Fergen investigated within and found a woman on one of the beds, mutilated similarly to woman Saran found.
Fergan tracked the man to another woman's house where he (and 3 guards) found the man mutilating the woman. Both this instance and the mutilation in the inn were done under the cover of a Silence spell (clever, right?).
There were a couple fights, mentioned in OOC. The guy was ko'd, sent to jail and killed himself before trial. One quick tidbit, let's say on Fergan's way out of town, he hears from his guard friend that the prison guards that found him tried to save him, but were too late. Part of the unofficial story reported by one of the guards (which is why I didn't mention it earlier) is that the necromancer appears to have hung himself, but was struggling mightily against it, so maybe changed his mind after kicking over the stool? The guard affirms there was no non-magical way anyone could have gotten into or out of the cell. I also want to note that this happened before Jeffery Epstein did not kill himself. If there is any last minute questions Fergan wants to ask about this, we'll retcon it here.
I think that's the only shared history needed to be covered.