Jessi Slaughter cyberbullying case

The Jessi Slaughter cyberbullying case revolved around an 11-year-old girl, Jessica Leonhardt (nicknamed "Jessi Slaughter" and "Kerligirl13"), whose profanity-laden video postings became a viral hit via Stickam and YouTube. The videos resulted in a campaign of telephone and internet harassment against the girl, especially by members of the 4chan discussion board, which has been characterized by her family and the media as a case of cyberbullying.

Timeline
The harassment intensified after Leonhardt posted a video that included her father insulting and threatening the bullies, telling them that they had "done goofed," that he had "back-traced" their identities, and threatening that "consequences will never be the same." Leonhardt's father later admitted that he was simply trying to support his daughter as her father and "get people to stop hating." His retaliation made the taunting worse, and the video of his reactions received more views than any of his daughter's previous recordings.

Leonhardt was placed under police protection, and the family's home was placed under police surveillance. She underwent counseling for the harassment but says it has not discouraged her from continuing to post videos to the internet.

Reactions
Jessi Slaughter and her parents were subsequently interviewed on ABC's Good Morning America. The family revealed that, since the videos went viral, they have received harassment ranging from death threats to unfounded accusations of sexual abuse against the girl. After the interview, the television audience was given advice on how to handle online bullying.

In Australia, advocates of internet censorship invoked the harassment to support mandatory internet content filtering. In France, L'Express described the harassment as "ruining the life" of "an American woman in the throes of adolescence."