In a stunning break for the Simpson prosecution, defense witness Robert Heidstra testified that he saw a car resembling O.J. Simpson's white Bronco speeding away from the crime scene about a half an hour after prosecutors say Simpson drove there to commit the murders. Heidstra earlier was the source of tense words betweendefense attorney Johnnie Cochranand prosecutor Christopher Darden after Darden asked him if one of the voices he had heard outside Nicole Simpson's house the night of the murders could have come from a black man. Cochran exploded, calling the question "racist" and demanding that it be struck from the record. The two lawyers, who have been at odds since Cochran suggested early in the trial that Darden was only on the prosecution's team to appeal to black jurors, quickly began arguing. Judge Lance Ito cleared the court, threatening to hold both men in contempt. Later, he allowed Darden's question to stand.