Chicago attack condemned by Black Lives Matter campaigners
Four black people face hate crime and kidnapping charges for the Facebook Live-aired torture of a mentally disabled white man.
In the video, the assailants can be heard making derogatory statements against white people and Donald Trump.
Student Shelby, a supporter of Black Lives Matter, told World Have Your Say the social campaign group is being unfairly linked to the attack.
Listen to World Have Your Say on the BBC iPlayer.
Produced by Trystan Young