John Meraz, a tow truck driver at Viertel's tow yard, was called by the defense in July 1995 and examined by Johnnie Cochran, but his testimony unraveled under Marcia Clark's extensive cross-examination. Clark subjected Meraz to a lengthy and methodical cross that stretched across multiple segments, during which he admitted to stealing receipts from the Bronco while simultaneously claiming he had seen no blood inside the vehicle — despite photographs showing it plainly visible. His credibility collapse made him an effective moment for the prosecution during the defense's own case.