A warning to our viewers: This story contains disturbing images. Authorities in Indiana are investigating an apparent violent, racist attack on a Black man that took place over the weekend. Vauhxx Booker posted video of the disturbing encounter on social media, in which five men pinned him to a tree, beat him and threatened to lynch him. The attack happened at Lake Monroe, near Bloomington, on July 4. Booker, a member of the Monroe County Human Rights Commission in Bloomington, says he was able to get out of their grip after passers-by intervened to get the attackers off him.