The final witness in the trial of Łukasz Żak, accused of causing a fatal car accident on Łazienkowska Route in Warsaw, testified that the defendant threatened her following the incident. Sara S. also revealed she was a passenger in Żak’s vehicle at the time of the crash. Her testimony potentially incriminates Żak further in the ongoing legal proceedings. The trial was adjourned Wednesday due to the absence of a key expert witness. The court has not yet closed the evidentiary phase of the trial. Żak faces charges related to causing a death through negligence. Further testimony and expert analysis are anticipated as the case progresses.