The group known as 764 is infamous for some of the most depraved online harassment targeting children. On apps such as Discord, where moderation is easily skirted, predators groom minors until they obtain collateral, like nude photos, from them. They then threaten to distribute this collateral unless the children livestream disturbing acts, including self-harm, cruelty to pets, sexual acts, and carving the names of their harassers into their skin. The Washington Post's past investigations into these dark corners of the web have exposed the insidious nature of 764's hold on children—and in its newest report, journalists Shawn Boburg and Chris Dehghanpoor take an in-depth look at the person who started it all as a teenager.