Kato Kaelin's cross-examination and redirect testimony consumed Day 44, with Shapiro aggressively portraying Simpson as calm, unangered, and a loving father—while establishing gaps in the timeline—and Clark dramatically resurrecting violent domestic incidents (Gretna Green police call, Christmas 1993 rage) that Kaelin had conspicuously omitted from his prior grand jury testimony. Clark impeached Kaelin's credibility on this pattern of omissions. Multiple discovery disputes and sidebar conflicts underscored the increasingly contentious proceedings.

• Shapiro's cross-examination portrayed OJ as a loving, calm, non-jealous father in good spirits the week before the murders.
• Clark's redirect revealed two violent domestic incidents (Gretna Green broken French doors with police called; Christmas 1993 rage) that Kaelin had withheld from grand jury testimony and defense interviews.
• Dispute over defense investigator notes and Shapiro's introduction of a 20-page uncertified June 14th interview transcript that Clark claimed she had never seen.
• Kaelin testified to a 3-to-5 minute window between hearing thumping sounds and seeing OJ depart, confirming no injury to OJ's left hand at 11pm.
• Clark impeached Kaelin by establishing his pattern of omitting significant details from prior statements, suggesting deliberate withholding.
• Judge Ito instructed jury to disregard hearsay about a 1989 domestic violence incident, ending the day on a note of procedural conflict.