The day was consumed by Barry Scheck's methodical cross-examination of criminalist Dennis Fung, using videotape evidence from Rockingham to expose critical gaps in the blood sample chain of custody. Scheck demonstrated that Detective Vannatter's car was absent when Fung claimed to possess the blood vial, forcing Fung to abandon successive accounts and admit he relied on videotapes rather than actual memory. The examination revealed multiple evidentiary problems including missing staple holes on a crime scene checklist page, item number discrepancies, and a late discovery dispute over a previously undisclosed document located in Fung's notebook. By day's end, the prosecution's case for the blood evidence's integrity had been substantially undermined.

• Judge Ito accidentally erases five seconds of KTLA tape while reviewing it in chambers
• Videotapes reveal Detective Vannatter's car absent during first Rockingham departure but present during second
• Scheck uses video to show Fung leaving Rockingham with empty hands, contradicting prior accounts of carrying blood vial
• Page 4 of crime scene checklist found to have missing staple holes, suggesting the page was replaced or fabricated
• Item number discrepancy discovered: blood vial labeled as item 17 in Fung's report but item 18 in lab records
• Missing crime scene checklist page located in Fung's personal notebook, triggering heated discovery violation dispute
• Fung admits having no independent recollection of key events—only memory from watching videotapes
• Scheck directly accuses Fung of destroying original page 4 to conceal departure time inconsistent with Vannatter's timeline