They said could hear one of the police officers on the audio tape referring to Chamberlain by using the N-word . Grand jury declines to indict police officer who fired fatal shots in November . The grand jury's decision not to charge the officer, Darren Wilson, comes after a week of protests over his killing by Michael Brown, an unarmed black 18-year-old. Chamberlain 's family accused police of excessive force and racial profiling . The White Plains veteran , 68 , was black ; police said he displayed knives at his door .
Grand jury declines to indict police officer who fired fatal shots in November . The grand jury's decision not to charge the officer, Darren Wilson, comes after a week of protests over his killing by Michael Brown, an unarmed black 18-year-old. Chamberlain 's family accused police of excessive force and racial profiling . The White Plains veteran , 68 , was black ; police said he displayed knives at his door .