Could be. My vote for the next place to go is Sorcerer's Sundries. Reasons: (1) we might learn more about the knife used to skin the dragonborn; (2) we might learn about a certain customer (or vendor?) with an animal-skeleton top hat.
I'm not a fan of the line of inquiry going after the town guardsman Rorke Stonevalor. I think it's more likely that he just profited off the deaths using Selwyn Leventide to fence body parts, as opposed to orchestrating the deaths himself.
I also could be convinced that a visit to the Harbormaster's Office would be worthwhile, since we might learn more about the first victim or where the anchor came from. I'd much prefer those two locations over Saint Sollars Way. Rorke is dirty and he's likely framing Selwyn to cover his own rear end, but I don't think following his trail will lead us to Sceleritas Fel.
