A racist slur was hurled during Sinners stars Michael B. Jordan and Delroy Lindo's presentation at the BAFTAs! Sunday's award ceremony has been engulfed in controversy after Tourette Syndrome advocate John Davidson yelled the n-word, a racist slur, while the stars were onstage. Tourette's causes involuntary verbal and physical tics, which can often include loud swearing and, sometimes, the release of deeply offensive terms.