The Lally tape—a surreptitious 30-minute audio recording made by Sergeant Craig Lally of O.J. Simpson's domestic violence incident at Nicole's Gretna Green home on October 25, 1993—captured his unguarded behavior. This audio evidence became critical in establishing pattern and motive across both the criminal and civil trials, entered as Exhibit 757 and documenting O.J.'s conduct months before the murders.