I'm surprised no one has revealed the origins of the Facebook video that (supposedly) showed a black girl getting hanged: https://mic.com/articles/177032/video-of-a-black-woman-s-hanging-went-viral-on-facebook-the-site-marked-it-as-mature#.t1aIqVQU6
I remember several months ago, someone stumbled on an old YouTube video titled "Hi Walter! I got a new gf today!" and people freaked out, thinking it might be linked to the abduction of a Wisconsin girl. Before long, police investigated and concluded the video was fake.
The hanging video is probably fake, too. Perhaps it was produced by some porn/fetish studio. Snopes looked into it, and said the video was unrelated to the death of a college student named Kendra Shanice Reid. There was also speculation that the girl in the video was a porn actress named Trazcy Kush, but she shut down that rumor on Twitter. GhettoGaggers has also denied responsibility.