Jurors in the fourth murder trial for Kepler, a white former Oklahoma police officer, heard a 911 call Tuesday, Oct. 17, 2017 where his daughter screams to dispatchers that her father had shot her 19-year-old black boyfriend. Defense attorney Richard O’Carroll accused prosecutors of pursuing a “political” case against Kepler and says he has been “unequivocal” in three previous trials that he saw Lake armed. A white former Oklahoma police officer on trial for the fourth time in the 2014 killing of his daughter’s black boyfriend has told jurors he had no choice but to shoot the young man. A white former Oklahoma police officer on trial for a fourth time in the fatal shooting of his daughter’s black boyfriend is expected to testify in his defense. Prosecutors rested their case Tuesday after jurors heard a 911 call where Kepler’s daughter screams to dispatchers that her father had shot Lake.