Masks of Nyarlathotep
Investigated cults until his untimely death.
An expert in death cults and author of several books on the subject. Investigated blood cults in east Africa. Stumbled upon evidence that some members of the Carlyle Expedition survived. Asked Barclay to assemble a team of investigators to help him follow up leads. Seems like he felt like he was in trouble (being chased?) and needed allies to help him follow up on his leads.
The PCs found him (recently) deceased with his stomach hacked open, his intestines unraveled, and his organs splayed about.