We need a game plan here. We gonna splitt he party, or stick together?
The way I see it we have to do the following:
A) Come up with questions for the cops (get them to do the legwork).
B) Do the occult research thing at the institute.
C) do some legwork ourselves.
So let's come up with some questions we need answers for first.
1) Anything connecting the sacrifices, or are they victims of circumstance? I'd have the cops run this (Cade/Meredith review the data they sent him) as well as the institute (Nick, put that monstrous research to work

).
2) Look for similar marking in the other victims? Cade/Meredith should check the medical reports.
3) What creature could have caused them? Nick do your thing.
4) Talk to the victims friends and family. I assume the cops already did the same for the previous victims, so reviewing the data should tell us if we should go ask some additional questions, with more of an occult bent. For the latest victim, I reckon the best choice is to send Diego to ask the questions. Probably changing to street clothes first

If necessary Larry will go as well (if Diego thinks it could help).
5) I'm probably missing something, so lets brainstorm....