In the hours preceding Raniere's court appearance in Texas, FBI agents spent several hours combing through the Saratoga County residence of NXIVM's co-founder and president, Nancy Salzman.

The FBI's raid of Salzman's residence signaled a wider criminal investigation of the secretive organization than just the sex-trafficking allegations that led to the arrest this week of its longtime leader.

A former NXIVM associate, Kristen M. Keeffe, who defected from the organization several years ago, alleged in 2015 that large amounts of cash used to be stored in a safe at Salzman's residence.

...Salzman has been an influential figure in the organization since it was set up more than two decades ago. She also was involved in some of the **medical research studies **that were performed by a doctor associated with NXIVM, Brandon B. Porter.

https://m.timesunion.com/news/article/Feds-raid-home-of-NXIVM-co-founder-Nancy-Salzman-12784322.php

Nancy Salzman:

(oops, submitted before I was done writing it; am currently updating it)