The killing of Kenneth Chamberlain, Sr., occurred on November 19, 2011, in White Plains, New York. After his Life Aid medical alert necklace was inadvertently triggered, police came to his home and demanded that he open his front door. Despite his objections and statements that he did not need help, the police broke down Chamberlain's door, tasered him, and then shot him dead. Chamberlain was a 68-year-old, African-American, retired former-Marine, and a 20-year veteran of the Westchester County Department of Corrections. He wore the medical alert bracelet due to a chronic heart problem.