Jackass Roger Ebert stands by 'Jackass' remarks about Ryan Dunn's car crash 06/21/2011 Chicago film critic and TV personality Roger Ebert says he won't apologize for a controversial remark he made via Twitter about Ryan Dunn's fatal car crash. Read More RELATED NEWS Steve-O engaged to girlfriend Lux Wright: "I'm so happy"'Jackass' and 'Viva La Bam' star Vincent "Don Vito" Margera dies'Jackass' star Bam Margera marries Nicole Boyd in Iceland TAGS: