Thanks everyone for their responses.

I've informed Raymond of the autopsy results (that's when I realized he's the problem).

While I have 8 of the Sephirah, I can't get one of them because apparently I need to complete Vizima Confidential. I can't complete the Monoliths or Mysterious Tower because I can't get all the Sephirah. I don't think I can go anywhere further with Kalkstein until I complete them or get some other evidence. There's nothing more I can say to Ramsmeat either. I've already exonerated Vivaldi and Leuvaarden. Vincent won't talk and I've exhausted everything with Thaler.

I can't complete the Alghoul contract or The Gravediggers Gratitude as I can't get into the cemetery because I can't get a pass from Thaler or the City Guards. I'm not sure about the Echinops contract because I think I killed most of them already without collecting the roots.

I will persevere with what other quests are available until something changes. I'm happy to keep trying so long as I haven't worked my way into a dead end.