The trial day was dominated by extensive testimony from houseguest Kato Kaelin about the evening of June 12, 1994. Kaelin recounted three loud thumps on his bedroom wall around 10:40 PM, OJ Simpson's insistence on retrieving an unfamiliar dark knapsack before departing for the airport, and his observations that Simpson showed no injuries or bleeding on his hands. Clark's later questioning focused on Kaelin's multiple pre-trial meetings with defense counsel and his increased acting work since the murders.

• Kato Kaelin testified about three loud thumps on his bedroom wall at approximately 10:40-10:45 PM on June 12, forceful enough to shift a framed picture
• Kaelin described OJ Simpson pointedly insisting on retrieving a mysterious dark knapsack from the driveway before departing for the airport
• Prosecution established through Kaelin's testimony that Simpson showed no visible injuries or bleeding on his hands throughout the evening
• Marcia Clark questioned Kaelin about his multiple pre-trial meetings with Shapiro, Pavelic, and Hostetler and the lack of notes or recordings provided to him
• Clark also questioned Kaelin about the dramatic increase in his acting work since the murders
• Judge Ito allowed use of the June 13 Rockingham videotape subject to a motion to strike after the defense raised foundational objections about its unknown source