The prosecution presented evidence about the January 1, 1989 domestic violence incident through 911 dispatcher Sharyn Gilbert, Detectives John Edwards and Mike Farrell, and three Polaroid photographs of Nicole Brown Simpson's injuries. Gilbert testified that she heard a screaming woman and sounds she believed were strikes; Edwards described Nicole's injuries and Simpson's statement that he pushed her out of bed before leaving the scene; Farrell testified that Simpson later accepted responsibility for causing Nicole's injuries and expressed remorse. The defense challenged the investigation's thoroughness, including limited photography, uncollected evidence, missing interviews, and reliance on memory.

• The January 1, 1989 911 tape was played in court; dispatcher Sharyn Gilbert testified that it captured a woman screaming and sounds she believed were a slap or strike
• Detective Edwards testified Nicole emerged hysterical saying 'He's going to kill me' with visible injuries including cut lip, swollen eyes, and finger marks on her throat
• Three Polaroid photographs of Nicole's injuries were introduced; Edwards testified they didn't capture the full extent of the damage
• OJ admitted to pushing Nicole out of bed but fled the scene in his Bentley before arrest could be made
• OJ made a call to Detective Farrell admitting responsibility and expressing remorse
• Defense disclosed that prosecution witness Ron Shipp is Cochran's cousin, creating a conflict of interest OJ waived
• A 402 hearing began over whether Shipp's testimony about OJ's 'dreams about killing her' would be admissible