As the murder trial for Derek Chauvin continued Tuesday, the defense called its first witnesses, including Barry Brodd, a former police officer and “use-of-force expert”, who argued Chauvin was acting “with objective reasonableness” when he kneeled on George Floyd’s neck for over nine minutes, leading to his death. New bodycam footage was also shown to the jury of Floyd sitting, handcuffed, and giving his name and birthdate to Minneapolis police officer Peter Chang — among the first officers to arrive at the scene, before Chauvin.