July 2014 meeting Edit
Sanc gave the FBI enough information to track down Anita Sarkeesian harasser Mateus Prado Sousa in Brazil. The FBI could not legally forward the case to Brazilian authorities without Sarkeesian's permission, which she refused to give. 
On November 5, 2014, Oliver Campbell claimed that "FBI and DHS are aware of and KNOW that at least two certain individuals sent themselves threats." On November 7, Campbell said that he knew of an FTC investigation but could not confirm whether the FBI was investigating.
Other investigating agencies Edit
On November 13, 2014, NPR reported that the local police department of Arlington, Massachussetts is "in the middle of a high-profile investigation into the online harassment of Brianna Wu." Arlington police chief Frederick Ryan is quoted as saying it can take as long as 30-45 days to get an IP address from Twitter.