Prosecutor Harmon mounted an aggressive cross-examination of defense DNA statistics expert Dr. Terence Speed, challenging his qualifications and lack of case-specific analysis while emphasizing that prosecution expert Dr. Weir's population frequency estimates remained the only statistical evidence before the jury. Meanwhile, Judge Ito recused himself from a motion involving LAPD Internal Affairs records after disclosing his wife's recent promotion to Captain III of that division. The day also featured multiple discovery disputes and new testimony from Gretchen Stockdale about a voicemail Simpson left her on the night of the murders, though the original tape was subsequently lost.

• Prosecutor Harmon engaged in sustained cross-examination of Dr. Terence Speed, exposing that he had performed no statistical analysis of actual evidence and lacked familiarity with specific sample items
• A sidebar erupted when Harmon introduced a letter from Speed without prior disclosure, prompting Judge Ito to restrict its use to limited credibility arguments
• Judge Ito recused himself from ruling on an LAPD Internal Affairs motion after revealing his wife's recent promotion to Captain III of that division
• Defense witness Gretchen Stockdale testified about a voicemail Simpson left her at 7:35 PM on June 12, 1994, though the original tape was lost due to improper destruction
• Judge Ito reassigned the Internal Affairs motion to another judge (Judge Reid), who deferred materiality determination back to Ito
• The defense and prosecution clashed repeatedly over discovery: Baden/Wolf notes, Speed's letter, voicemail chain of custody, and Internal Affairs records