kenneth chamberlain, jr., met with westchester county prosecutors who assured him that a grand jury will hear evidence in the case. kenneth chamberlain, jr. has called for the prosecution of the officers who can -- shot dead his father. after the meeting, he criticized police for refusing to release the name of the officer who fired the fatal shots. the police have responded to a false alarm from timberlands medical alert pendant while sleeping. the officers broke down his door, tasered him, then shot him dead. speaking to "democracy now!" kenneth chamberlain, jr. described in on the recording from the medical alert system operator that captured the moment the police barged into his father's home. >> you hear him asking them, why they're doing this to him. he says, "i am a 68-year-old man with a heart condition. why are you doing this to me? i know you're going to come in here and kill me." you can also hear him pleading with the officers again, over and over. at one point, that is when the expletive is used