The defense mounted a relentless, multi-round assault on the prosecution's physical evidence during this heavily evidentiary day. FBI shoe print expert William Bodziak endured intensive cross-examination by Barry Scheck, who systematically exposed methodological gaps—including his failure to search the FBI's computerized shoe database and his reliance on assumptions about blood patterns. The defense then introduced surrebuttal witness Prof. Herbert MacDonell, who testified that his blood-smearing experiment produced negligible shrinkage and could not account for the evidence gloves' estimated 10-15% size difference. Clark challenged his methodology, including his use of brand new gloves and lack of expertise in glove manufacturing or leather treatment.

• Bodziak admits he never searched FBI's computerized shoe database for parallel line patterns despite using it to identify Bruno Magli prints
• Scheck challenges Bodziak's expertise on fabric impressions, blood discoloration, and interpretations of Dr. Henry Lee's testimony
• Bodziak testifies that the parallel line imprint photographed by Dr. Lee on June 25th was not present on June 13th and has no significance to the murder
• Judge takes judicial notice of moon phase on night of murders: 12% waxing crescent
• Prof. Herbert MacDonell called as surrebuttal witness on glove shrinkage from blood saturation
• MacDonell's controlled experiment showed negligible shrinkage after blood was smeared on the gloves, and he testified blood smearing could not account for 10-15% shrinkage
• Clark aggressively cross-examines MacDonell, exposing methodological flaws including use of brand new gloves versus well-worn crime scene evidence
• Prosecution conditionally rests rebuttal case; administrative session addresses witness scheduling and excludes Officer Sherry Ray's testimony on Mark Fuhrman