the neighborhood on at least four different occasions at night the defense argued arbery was not simply out for a jog when the defendants tried to detain him. >> he is not jogging he is running away into the neighborhood possibly armed. >> reporter: the defense telling the jury, travis mcmichael had come face to face with arbery just days before the fatal encounter and that he acted in self-defense when he shot arbery after the pursuit. with testimony underway, prosecutors are questioning police officers who arrived at the scene and took body camera video that they hope can convince the jury to convict the defendants of murder thank you. in washington d.c. today, a tribute to a remarkable american life a memorial service for colin powell former secretary of state, chairman of the joint chiefs and so much more. chief washington correspondent andrea mitchell was there >> reporter: at washington's national cathedral, an