Police killer 's mother : ' 'm not a murderer, but if you want to kill me then do it. " Her son was 'spiraling out of control , ' she tells a CNN affiliate . The two men were shot and killed in their car while on duty . NYC Mayor vows to stand by officers ' families in `` unspeakable pain '' Investigators probe how Brinsley got the gun he used .
Police killer 's mother : ' 'm not a murderer, but if you want to kill me then do it. " Her son was 'spiraling out of control , ' she tells a CNN affiliate . NYC Mayor vows to stand by officers ' families in `` unspeakable pain '' Investigators probe how Brinsley got the gun he used .