The plaintiff challenged the defense's photo authenticity claims with two contact sheets that Gelblum described as showing 30 photographs of Simpson with shoes on. Groden said the final contact sheet did not change his opinion, but later conceded that if 30 authenticated photographs existed, including photographs published before the murders, that would affect his overall conclusion. The day also featured testimony from investigators and officers about police timelines, unsupervised investigative work, prior-statement inconsistencies, and Marlow's briefing of Officer Aston on questions the defense intended to ask. Judge Fujisaki admitted the shoe photographs as impeachment evidence and excluded plaintiff-linked observer David Lifton from the courtroom.

• Gelblum described two contact sheets as showing 30 photographs of Simpson with shoes on; Groden said the final sheet did not change his opinion and later conceded that an authenticated set of 30, including pre-murder publications, would affect his overall conclusion
• Gelblum challenged Groden on his changed certainty and late emphasis on moisture; on redirect, Groden defended his opinion with frame-registration and scratch-line analysis
• Photograph reveals investigator Marlow holding notepad in Simpson's closet, contradicting his no-notes testimony
• Officer Aston's trial statements exposed major inconsistencies with his prior 1995 detective statement
• Defense elicited a 10:30 PM phone-log entry about a reported double homicide; on cross, Tippin clarified that the caller was a Channel 4 News reporter and the responding officer knew of no such homicide
• Kato Kaelin's friend Rachel Ferrara establishes he heard mysterious thumps at approximately 10:40 PM
• Judge excludes plaintiff-linked observer David Lifton from the courtroom after defense attorney Leonard alleged that Lifton violated the gag order