The chilling 911 call that captured Georgia nursing student Laken Riley’s horrifying final moments was played in court Friday — leaving her grieving mother in a flood of tears during the first day of opening statements. Riley, 22, triggered the emergency function on her cellphone and called 911 while running on the University of Georgia campus around 9:11 a.m. Feb. 22, prosecutor Sheila Ross told the Athens-Clark County courtroom. Only a male voice was heard on the brief, muffled audio that was played in court.