Forensics at Work Outrage: the O.J. Simpson Verdict In terms of blood evidence, what two key pieces of evidence lend itself to support for a guilty verdict? There were other pieces of evidence at the crime scene and also on O.J. himself. What were these pieces of evidence? What did the DNA evidence reveal and what two DNA tests were used? What compelling marker evidence did the DNA tests reveal? The author of the article, Vincent Bugliosi, obviously feels that the verdict absolving O.J. Simpson of this crime was absurd. What arguments does he offer to convince his audience that the defenses offered by the trial lawyers for Simpson were, in short, a monumental injustice to the Goldman and Brown families?